100 SAT Words Beginning with "I"

Find lists of SAT words organized by every letter of the alphabet here: A, B, C, D, E, F, G, H, I, J, K & L, M, N, O, P, Q, R, S, T, U, V, and W, X, Y & Z.


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definitions & notes only words
  1. iconoclast
    someone who attacks cherished ideas or institutions
    Jobs is a classic iconoclast, one who aggressively seeks out, attacks, and overthrows conventional ideas.BusinessWeek (Oct 12, 2010)
  2. idealistic
    of high moral or intellectual value
    Instructors, of all levels, are fundamentally idealistic people, motivated by a passion for helping the world’s young billions achieve their human potential.Forbes (Jan 24, 2012)
  3. ideological
    concerned with or suggestive of ideas
    What was once an ideological abstraction — “austerity” — will have very real effects on everyday life for average Americans.Washington Post (Jul 30, 2011)
  4. idiom
    expression whose meaning cannot be inferred from its words
    “Hand down, man down,” he said, repeating a favorite Jackson broadcasting idiom at a news conference Monday to introduce the Warriors’ rookies for next season.New York Times (Jun 29, 2011)
  5. idiosyncrasy
    a behavioral attribute peculiar to an individual
    My roles in independent films have been fuller, chockablock with all sorts of human idiosyncrasies, kinks and foibles of humanity.
  6. idle
    silly or trivial
    "Sure, sir, they can know nothing about it; it's just idle talk, and no more."Lever, Charles James
  7. idyllic
    charmingly simple and serene
    The scene of this charming, idyllic love story is laid in Central Indiana.Davis, Owen
  8. ignominious
    deserving or bringing disgrace or shame
    The sentence passed upon them is that they die a shameful and ignominious death.Hodgson, Edward S.
  9. illustrious
    widely known and esteemed
    The Trumbull family was the most illustrious in the state, embracing three governors and other distinguished men.White, Horace
  10. imbibe
    take in liquids
    For that little beast, having a severe cold, was given whisky-and-milk one day, and, imbibing too freely, became absolutely drunk.Casserly, Gordon
  11. imbroglio
    an intricate and confusing interpersonal situation
    And indeed his world is one huge imbroglio of Potentialities and Diplomatic Intricacies, agitating to behold.Carlyle, Thomas
  12. imminent
    close in time; about to occur
    He perceived the danger which he had so long warded off now instant and imminent.Rosebery, Archibald Phillip Primrose
  13. impaired
    diminished in strength, quality, or utility
    “Thinking could be slowed, attention dulled, judgement impaired, memory muddled.”Washington Post (Mar 12, 2012)
  14. impartial
    free from undue bias or preconceived opinions
    “We are looking for people who can serve as fair, objective and impartial jurors.”Washington Post (Sep 14, 2011)
  15. impasse
    a situation in which no progress can be made
    Unfortunately success also depends on an end to the impasse between America and China, whose trade relations seem stuck.
  16. impecunious
    not having enough money to pay for necessities
    It had been quite in keeping with his ideas that the Thornes should taste the bitters of poverty, and know what being impecunious really meant.Fenn, George Manville
  17. impediment
    something immaterial that interferes with action or progress
    He identified several chronic impediments to long-term progress in Brazil, too, including high tax rates, deficient transportation and other infrastructure and a poor education system.New York Times (Apr 7, 2012)
  18. impending
    close in time; about to occur
    Davis immediately began preparing food and snacks for his wife’s impending arrival.New York Times (Jul 23, 2011)
  19. imperative
    requiring attention or action
    Though always important, safety becomes imperative when children are involved.
  20. imperceptible
    impossible or difficult to sense
    Only a faint, almost imperceptible tinge remained of the ink stains on her face.Wells, Carolyn
  21. imperious
    having or showing arrogant superiority
    He was known as an imperious boss with little patience for weakness, one who launched blistering tirades that left subordinates fuming, or in tears.Chicago Tribune (Oct 6, 2011)
  22. impetuous
    marked by violent force
    There are times when all these Yorkshire rivers become impetuous torrents, roaring along in resistless might and majesty.White, Walter
  23. implicit
    being without doubt or reserve
    He was accustomed to implicit obedience and was not used to seeing men smile when he uttered a threat.Marshall, Edison
  24. implode
    burst inward
    As the graph shows, growth actually slowed and then the whole system imploded into a catastrophic crisis.
  25. implore
    beg or call upon in supplication
    The poor woman continued to implore mercy; and coming nearer to the Lord, "She fell down and worshipped him, saying, Lord, help me!"Ross, Lady Mary
  26. imply
    express or state indirectly
    Smoothing planes are, as the name implies, used to simply smoothen the work surface after it has been trued.Rose, Joshua
  27. impregnable
    incapable of being attacked or tampered with
    At the same time, the United States would be safeguarded against internal dangers and made impregnable against attack or invasion by any foreign power.Maxwell, George Hebard
  28. impromptu
    without advance preparation
    Bauer proposed to Shourd while both were in prison, fashioning an impromptu ring out of threads from his shirt.Washington Post (Nov 14, 2011)
  29. impudence
    the trait of being rude and impertinent
    Ichikawa conceded that his "arrogance and impudence" may have brought on the attack, adding: "I won't feel like having a drink for a while."
  30. impunity
    exemption from punishment or loss
    According to Amnesty, some groups of former rebels are committing human rights violations with impunity, unchecked by the interim government.
  31. inalienable
    not subject to forfeiture
    Men's natural rights are all inherent and inalienable; and therefore cannot be parted with, or delegated, by one person to another.Spooner, Lysander
  32. inane
    devoid of intelligence
    And then, again, his asking me his stupid, inane questions, as if I cared what man, and how many.Hutcheson, John C. (John Conroy)
  33. inanimate
    belonging to the class of nouns denoting nonliving things
    The moment when the first living beings arose from inanimate matter almost four billion years ago is still shrouded in mystery.Scientific American (Oct 10, 2011)
  34. inaugurate
    commence officially
    Continental has ordered 25 Dreamliners and plans to inaugurate them in November 2011 on new, nonstop flights to Auckland, New Zealand, and Lagos, Nigeria.New York Times (Aug 25, 2010)
  35. incarnation
    time passed in a particular bodily form
    When America Online came out, that was a very early incarnation of social networking with the instant messaging.
  36. incendiary
    a criminal who illegally sets fire to property
    While there the depot was set on fire and burned down, supposed to be the work of an incendiary.Terrill, J. Newton
  37. inception
    an event that is a beginning
    They were confident this week, eager to show how much improvement the league has made since its inception in 1996.Seattle Times (Jul 29, 2010)
  38. inchoate
    only partly in existence; imperfectly formed
    “But when the law is unsettled, inchoate, undeveloped, let’s say, it’s natural that judges’ political, social and economic views will shape how they see things.”New York Times (Dec 16, 2010)
  39. incipient
    only partly in existence; imperfectly formed
    As yet, it is in an incipient stage of development and has by no means revealed its full power for evil.Clark, John Bates
  40. incite
    provoke or stir up
    He was arrested on charges including inciting a riot and disorderly conduct.Seattle Times (Jun 16, 2011)
  41. inclement
    severe, of weather
    Check with your business's insurance policy to make sure it covers any accidents on company property caused by inclement weather conditions.
  42. incognito
    without revealing one's identity
    Hitherto their security has depended on keeping up their incognito by disguises, and the secrecy of their camping place.Reid, Mayne
  43. incompetent
    not qualified or suited for a purpose
    The common people, especially in the villages, know nothing at all of Christian doctrine; and many pastors are quite unfit and incompetent to teach.Just, Gustav
  44. inconspicuous
    not prominent or readily noticeable
    Unless Socapa Castle, therefore, is so small and inconspicuous as to have escaped my notice, it must have fallen into ruins or been destroyed.Kennan, George
  45. incorrigible
    impervious to correction by punishment
    There are some, however, who maintain that the criminal is incorrigible and that reformatory agencies have invariably failed.Kayll, James Leslie Allan
  46. incredulous
    not disposed or willing to believe; unbelieving
    She looked puzzled, half incredulous and perplexed, inclined to smile, blushing somewhat, and all uncertain.Black, William
  47. increment
    the amount by which something increases
    The plan also called for quoting prices in decimals, doing away with the one-eighth increments that had long defined Wall Street math.
  48. incumbent
    the official who holds an office
    The Democratic incumbent faces no serious primary challenge and his re-election campaign already is well under way.Time (Mar 25, 2012)
  49. indelible
    not able to be removed or erased
    The paints were not indelible, consequently they could be easily removed and another application made as circumstances required.Collins, Dennis
  50. indemnity
    protection against future loss
    They should pay an indemnity to the state of Guatemala, not just apologize.”New York Times (Oct 2, 2010)
  51. indenture
    bind by a contract for work, as an apprentice or servant
    Beneath both these classes were the indentured servants, a few of whom were men of ability forced to pay their passage by service.Commons, John R. (John Rogers)
  52. indifferent
    marked by a lack of interest
    He leant back in his chair, outwardly indifferent and calm, but throbbing in every nerve and pulse with wild excitement.Gull, Cyril Arthur Edward Ranger
  53. indigenous
    originating where it is found
    These deer are not indigenous, but were introduced by the Romans, probably from Asia Minor; and are, as at home, more or less private property.Buck, Walter J.
  54. indigent
    poor enough to need help from others
    Tarkowski declared himself indigent, and said he could not pay the fines, according to news reports.
  55. indignant
    angered at something unjust or wrong
    In Spain throngs of young people, known as “the indignant ones,” occupied public plazas nationwide, protesting unemployment and exclusionary politics.Forbes (Sep 7, 2011)
  56. indomitable
    impossible to subdue
    "The very heart of the city was burned out, but nothing could extinguish its indomitable spirit."Mitchell, Broadus
  57. ineffable
    defying expression or description
    He had asked questions—never in the form of words but only ineffable yearnings of his soul—and at last it had responded.Marshall, Edison
  58. inevitable
    incapable of being avoided or prevented
    “Yes,” she repeated more faintly, as though this was all natural, inevitable, expected.Blackwood, Algernon
  59. inexorable
    not to be placated or appeased or moved by entreaty
    He urged, entreated, commanded in vain, Mrs. Fortescue was inexorable.Aguilar, Grace
  60. infamous
    known widely and usually unfavorably
    This one line in President George W. Bush's 2003 State of the Union address overshadowed all the others, becoming infamously known as the "16 words."
  61. infinitesimal
    immeasurably small
    Within an infinitesimal period of time, a period too brief to be calculable, both hemispheres are again acting in unison.Ottolengui, Rodrigues
  62. infirmity
    the state of being weak in health or body
    Such are death, old age, physical infirmity, loss of worldly honor, final impenitence.Rameur, E.
  63. inflammatory
    arousing to action or rebellion
    After being fired, Ms. Bartz gave an inflammatory interview to Fortune magazine in which she used an expletive and called Yahoo’s board “doofuses.”New York Times (Sep 12, 2011)
  64. infringe
    go against, as of rules and laws
    He said the order was unlawful and infringed on officers' rights.
  65. ingratiate
    gain favor with somebody by deliberate efforts
    Yeah, well… I’ve seen eyes narrow and ears go back at first meetings — even when I’m trying to be humble, ingratiating and likable.New York Times (Nov 30, 2010)
  66. inherent
    existing as an essential constituent or characteristic
    Action and reaction are, according to him, essential inherent properties of brain matter as such, but consciousness is merely a dependent.Williams, C. M.
  67. iniquity
    absence of moral or spiritual values
    "I have loved justice and hated iniquity," he said in dying, "therefore I die in exile."Norway, Arthur H.
  68. innate
    not established by conditioning or learning
    In other words, one of our most essential abilities as humans--reading--is the product of a combination of innate and learned traits.
  69. innocuous
    lacking intent or capacity to injure
    Yet in confinement, he was docile, compliant and innocuous, they said.New York Times (Oct 31, 2011)
  70. innovative
    being like nothing done or experienced or created before
    On display are examples of artists using traditional subjects — portraits, landscapes, still lifes — in ways that were new, innovative, and sometimes shocking, at the time.Washington Post (Oct 14, 2011)
  71. innuendo
    an indirect and usually malicious implication
    As a genuine Irishman he never used an immodest word, or by gesture, phrase, or innuendo suggested an impure thought.Various
  72. insatiable
    impossible to satisfy
    The site branched into movies, foreign cartoons, news programs — anything to feed viewers’ insatiable appetite.New York Times (Jul 23, 2011)
  73. inscrutable
    difficult or impossible to understand
    Hearing these words, Nabu-Nahid's face assumed an expression that was unexpectedly complex—a little inscrutable, indeed.Potter, Margaret Horton
  74. insidious
    working or spreading in a hidden and usually injurious way
    Its onset is usually insidious, gradually worsening over years and thus easily ignored.New York Times (Jan 16, 2012)
  75. insolent
    marked by casual disrespect
    Insolent laughter and mocking shouts were the answer he received.J?kai, M?r
  76. insolvent
    unable to meet or discharge financial obligations
    In common parlance, bankruptcy is often used more casually, to mean something like broke or insolvent.New York Times (Sep 2, 2011)
  77. insouciant
    marked by unconcern
    I rattled on, insouciant and careless to all appearances, but in reality my heart like lead.Travis, Stuart
  78. insubordination
    defiance of authority
    "What Keble hated instinctively," says Newman, "was heresy, insubordination, resistance to things established, claims of independence, disloyalty, innovation, a critical and censorious spirit."Benson, Arthur Christopher
  79. insular
    suggestive of the isolated life of an island
    Describing the tour as “an insular, introverted, isolated world,” Wright said she found no relief during her too-brief trips home.New York Times (Mar 30, 2012)
  80. insuperable
    incapable of being surpassed or excelled
    His life is an insuperable force, vivid, inviolable and free, which my heart out of sheer love of him failed to recognize.Marx, Magdeleine
  81. insurgent
    a person who takes part in an armed insurrection
    Clashes broke out between the insurgents and government troops in June, with both sides blaming the other for provoking the violence.
  82. insurrection
    organized opposition to authority
    More than a decade of civil war left thousands dead after separatists on Bougainville Island began an armed insurrection in 1989.New York Times (Dec 13, 2011)
  83. intact
    undamaged in any way
    Questions were raised about the quality of construction in the area, with some buildings having remained completely intact while those next door were destroyed.New York Times (Oct 26, 2011)
  84. intangible
    incapable of being perceived by the senses, especially touch
    I thought they were all clouds—beautiful, airy intangible shapes.Waddington, Mary Alsop King
  85. inter
    place in a grave or tomb
    He was interred with due military honors in a cemetery near his home in Jersey City.Various
  86. interdict
    a court order prohibiting a party from a certain activity
    Out-of-door life is interdicted, so to speak; gaiety is out of the question; everything predisposes to industry and thought.O'Rell, Max
  87. interim
    serving during an intermediate interval of time
    Chief Financial Officer Anthony Vuolo will serve as interim CEO while the company looks for a permanent replacement.Washington Post (Jan 10, 2012)
  88. interject
    insert between other elements
    Indeed, the book is like an endless string of pearls, with here and there a ruby, a diamond, or a bit of honest glass interjected.Ballou, Maturin Murray
  89. interloper
    someone who intrudes on the privacy or property of another
    We look upon them somewhat as interlopers, parasites, occupying a place to which they have no legitimate right.Various
  90. interminable
    tiresomely long; seemingly without end
    This duration is eternity: an interminable duration existing all together.Coffey, Peter
  91. intimation
    an indirect suggestion
    Saul flinched before the concealed intimation in the words.Miller, Elizabeth
  92. intransigent
    impervious to pleas, persuasion, requests, or reason
    Cuba's response to recent US efforts to improve relations had revealed "an intransigent, entrenched regime" in Havana, said the US secretary of state.BBC (Apr 10, 2010)
  93. intrepid
    invulnerable to fear or intimidation
    He must be intrepid, persisting through danger to death, laboring for religious truth, neither precipitating peril by audacity nor shrinking from it through timidity.Lea, Henry Charles
  94. intrinsic
    belonging to a thing by its very nature
    Roughly speaking, some Christian thinkers believe animals have intrinsic rights to be treated well, like people.New York Times (Oct 14, 2011)
  95. introspective
    given to examining own sensory and perceptual experiences
    Some of these artists do show an introspective side, reaching inward to confess their dreams, and what innocent dreams they are.
  96. inundated
    covered with water
    The baffled water stopped, as if reflecting; then it turned back, and rose till it poured over its banks and inundated the fields.Aksakov, S. T. (Sergei Timofeevich)
  97. inverse
    opposite in nature or effect or relation to another quantity
    Others showed an inverse relationship, with their activity declining as the value increased.
  98. irrelevant
    having no bearing on or connection with the subject at issue
    His views are irrelevant – he’s a tudor historian talking about contemporary urban unrest.New York Times (Aug 13, 2011)
  99. irreverent
    showing lack of due respect or veneration
    His humour was cheeky, irreverent, subversive and most definitely not politically correct.
  100. itinerant
    traveling from place to place to work
    The interest extending widely beyond his parish, he spent part of his time in itinerant preaching, going several hundred miles and in every direction.Campbell, Charles

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