Words that should be added to The Challenge (I)

Th@1Guy (United States of America)
These itemizations of words should be incorporated into The Challenge to further challenge its participants, and they conveniently encompass a wide assortment of words that range in difficulty.
D, E, F, G-H, I, J-L, M, N-O, P, Q-R, S, T-U, V-Z, Other
260 words 16 learners

Learn words with Flashcards and other activities

Definition First
Print Flashcards

Other learning activities

Answer a few questions about each word. Use this to prep for your next quiz! Compete with other teams in real time to see who answers the most questions correctly! Test your spelling acumen. Read the definition, listen to the word and try spelling it!

Teaching tools

Create and assign quizzes to your students to test their vocabulary. Assign learning activities including Practice, Vocabulary Jams and Spelling Bees to your students, and monitor their progress in real-time.

Full list of words from this list:

words only definitions & notes
  1. iamb
    a metrical unit with unstressed-stressed syllables
  2. iambic
    of metrical units having an unstressed/stressed pattern
  3. iconic
    relating to a symbolic figure
  4. id
    primitive instincts and energies underlying psychic activity
  5. idealize
    consider or render as the best or most appropriate type
  6. ideate
    form a mental image of something that is not present or that is not the case
  7. idiocy
    extreme mental retardation
  8. idiomatic
    relating to the natural expressions of native speakers
  9. idiomatic expression
    an expression whose meanings cannot be inferred from the meanings of the words that make it up
  10. idiotic
    having a mental age of three to seven years
  11. idling
    having no employment
  12. idol
    a material effigy that is worshipped
  13. idolatrous
    relating to or practicing idolatry
  14. idolize
    love unquestioningly and uncritically or to excess
  15. igloo
    a hut built of blocks of snow in the shape of a dome
  16. ignis fatuus
    a pale light sometimes seen at night over marshy ground
  17. ignominiously
    in a dishonorable manner or to a dishonorable degree
  18. illation
    the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation
  19. illegalize
    declare against the law
  20. illegitimacy
    unlawfulness by virtue of not being authorized by or in accordance with law
  21. illiberality
    a lack of generosity with money
  22. illuminating
    tending to increase knowledge or dissipate ignorance
  23. illusionist
    someone who performs magic tricks
  24. imagery
    the ability to form mental pictures of things or events
  25. imbecilic
    having a mental age of three to seven years
  26. imbibition
    the act of consuming liquids
  27. imbricate
    used especially of leaves or bracts
  28. immanent
    inherent; existing or remaining within
  29. immediacy
    the quickness of action or occurrence
  30. immemorial
    long past
  31. imminence
    the state of being liable to happen soon
  32. immobilize
    to hold fast or prevent from moving
  33. immoderately
    without moderation; in an immoderate manner
  34. immolation
    killing or offering as a sacrifice
  35. immorality
    not being in accord with standards of right or good conduct
  36. immortalize
    make famous forever
  37. immovable
    not able or intended to be moved
  38. immunize
    perform vaccinations or inoculate against a disease
  39. impairment
    a reduction in quality or strength
  40. impatience
    irritation with anything that causes delay
  41. impeccably
    flawlessly
  42. impedimenta
    the baggage and equipment carried by an army
  43. impeding
    preventing movement
  44. impend
    be imminent or about to happen
  45. imperfect
    defective or inadequate
  46. imperfectible
    capable of being made imperfect
  47. imperfection
    the state or an instance of being flawed
  48. imperishable
    not subject to destruction or death or decay
  49. impermanent
    not lasting
  50. impermissible
    not allowed
  51. impersonation
    pretending to be someone else
  52. impetuosity
    rash impulsiveness
  53. impish
    naughtily or annoyingly playful
  54. implicative
    tending to suggest or imply
  55. imploring
    begging
  56. implosion
    a sudden inward collapse
  57. importance
    the quality of being significant or worthy of note
  58. important
    significant in effect or meaning
  59. importunity
    insistent solicitation and entreaty
  60. impossible
    not capable of happening or being done or dealt with
  61. impound
    take temporary possession of by legal authority
  62. impracticable
    not capable of being carried out or put into practice
  63. impractical
    not workable
  64. impracticality
    concerned with theoretical possibilities rather than actual use
  65. imprecate
    wish harm upon; invoke evil
  66. imprecision
    the quality of lacking precision
  67. imprisonment
    the act of confining someone in a prison
  68. improbably
    not easy to believe
  69. improper
    not suitable or right or appropriate
  70. improvable
    susceptible of improvement
  71. improvisation
    a performance given without planning or preparation
  72. inaction
    the state of being inactive
  73. inactivity
    the state of being inactive
  74. inadmissible
    not deserving to be accepted or allowed
  75. inadvisable
    not prudent or wise; not recommended
  76. inanition
    exhaustion resulting from lack of food
  77. inanity
    the quality of being meaningless or foolish
  78. inapplicable
    not capable of being applied
  79. inborn
    normally existing at birth
  80. incapability
    the quality of not being capable -- physically or intellectually or legally
  81. incapacity
    lack of physical or natural qualifications
  82. incarnadine
    redden or make pinkish
  83. incessancy
    the quality of something that continues without end or interruption
  84. incest
    sexual relation between persons too closely related to marry
  85. incisively
    in an incisive manner
  86. incommunicado
    without means, right, or desire to be in contact with others
  87. inconsequence
    having no important effects or influence
  88. inconsiderable
    too small or unimportant to merit attention
  89. inconsideration
    the quality of failing to be considerate of others
  90. inconspicuously
    in a manner intended to avoid attracting attention
  91. incontinence
    involuntary urination or defecation
  92. incorruptible
    incapable of being morally corrupted
  93. incubation
    the time it takes for a pathogen to manifest symptoms
  94. incubator
    apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants
  95. incubus
    an evil spirit thought to visit people while they sleep
  96. inculpate
    suggest that someone is guilty
  97. inculpatory
    causing blame to be imputed to
  98. indecency
    the quality of being morally offensive or shocking
  99. indecipherable
    not easily decoded
  100. indecorous
    lacking propriety and good taste in manners and conduct
  101. indecorum
    a lack of decorum
  102. indeed
    in truth (often tends to intensify)
  103. indefensible
    not able to be protected against attack
  104. indelibly
    in an indelible manner
  105. indelicate
    in violation of good taste even verging on the indecent
  106. indent
    set in from the margin
  107. indentured
    bound or forced to work by contract
  108. independently
    on your own; without outside help
  109. independent variable
    a value that does not depend on changes in other values
  110. indestructible
    not easily ruined
  111. indeterminable
    impossible to settle or decide with finality
  112. Indian summer
    a period of unusually warm weather in the autumn
  113. indicant
    something that serves to indicate or suggest
  114. indicatory
    (usually followed by `of') pointing out or revealing clearly
  115. indigestion
    a stomach disorder characterized by discomfort or pain
  116. indirection
    deceitful action that is not straightforward
  117. indirectly
    not in a forthright manner
  118. indiscernible
    difficult or impossible to perceive
  119. indistinguishable
    exactly alike; incapable of being perceived as different
  120. individuate
    give individual character to
  121. individuation
    the quality of being individual
  122. indocile
    of persons
  123. indoctrination
    teaching someone to accept beliefs uncritically
  124. inductive reasoning
    reasoning from detailed facts to general principles
  125. industrialize
    organize into systematic production or manufacture
  126. indwell
    to exist as an inner activating spirit, force, or principle
  127. indwelling
    existing or residing as an inner activating spirit or force or principle
  128. inefficacious
    lacking the power to produce a desired effect
  129. inefficient
    not producing desired results; wasteful
  130. inerrant
    not liable to error
  131. inescapable
    impossible to avoid or evade
  132. inexpedient
    not suitable or advisable
  133. inexperienced
    lacking practical experience or training
  134. in extremis
    in grave circumstances or at the point of death
  135. infancy
    the early stage of growth or development
  136. infatuate
    arouse unreasonable love or passion in
  137. infeasible
    not capable of being carried out or put into practice
  138. infect
    contaminate with a disease
  139. infected
    containing or resulting from disease-causing organisms
  140. infective
    caused by infection or capable of causing infection
  141. inferential
    relating to or having the nature of illation or inference
  142. infirmary
    a health facility where patients receive treatment
  143. infix
    put or introduce into something
  144. inform
    impart knowledge of some fact, state or affairs, or event to
  145. informality
    a manner that does not take forms and ceremonies seriously
  146. informant
    a person who supplies facts, knowledge, or news
  147. information
    knowledge acquired through study or experience
  148. informational
    relating to or conveying facts and knowledge
  149. infrequency
    noteworthy scarcity
  150. infrequent
    not occurring regularly or at short intervals
  151. infrequently
    not many times
  152. infuriated
    marked by extreme anger
  153. infuriating
    extremely annoying or displeasing
  154. infuse
    fill, as with a certain quality
  155. ingest
    take food, drink, or some other substance into the body
  156. ingestion
    the process of taking food into the body through the mouth
  157. inglorious
    deserving or bringing disgrace or shame
  158. ingratiatingly
    in a flattering and ingratiating manner
  159. ingratitude
    a lack of gratitude
  160. inheritable
    capable of being inherited
  161. inhibitory
    restrictive of action
  162. inhospitable
    lacking cordiality and generosity toward guests or strangers
  163. inhumane
    reflecting a lack of pity or compassion
  164. inhumanity
    the quality of lacking compassion or consideration for others
  165. inhume
    place in a grave or tomb
  166. injection
    the forceful insertion of a substance under pressure
  167. injudicious
    lacking or showing lack of judgment or discretion; unwise
  168. innards
    the organs in a body, collectively
  169. inordinately
    in a highly unusual, impressive, or extreme manner
  170. inorganic
    relating or belonging to the class of compounds not having a carbon basis
  171. in point of fact
    in reality or actuality
  172. inquest
    an investigation into the cause of an unexpected death
  173. inquisition
    a severe interrogation
  174. insanitary
    not sanitary or healthful
  175. insatiate
    impossible to satisfy
  176. insecticide
    a chemical used to kill bugs
  177. insectivore
    any organism that feeds mainly on bugs
  178. insentient
    lacking consciousness, responsiveness, or emotions
  179. insignia
    a badge worn to show official position
  180. insincerity
    the quality of not being open or truthful
  181. insinuation
    an indirect (and usually malicious) implication
  182. insofar
    to the degree or extent that
  183. inspirational
    serving to uplift the mind, spirit, or creative powers
  184. inspirit
    infuse with spirit
  185. inspiriting
    cheerfully encouraging
  186. installation
    the act of setting something up for use
  187. installment
    a payment of part of a debt
  188. instantaneous
    occurring with no delay
  189. instigation
    deliberate and intentional triggering
  190. instigator
    someone who deliberately foments trouble
  191. instinctively
    by natural impulse, without thinking
  192. in stride
    without losing equilibrium
  193. instrumentation
    the act of providing or using the instruments needed for some implementation
  194. insufficiency
    a lack of competence
  195. insulin
    a glucose-regulating hormone produced in the pancreas
  196. intake
    an opening through which fluid is admitted to a tube
  197. intelligentsia
    an educated elite
  198. intemperance
    excess in action and immoderate indulgence of appetites
  199. intended
    resulting from one's intentions
  200. intension
    the internal content of a term or concept
  201. intensively
    in an intensive manner
  202. intentionally
    with intention; in an intentional manner
  203. interception
    the act of preventing a person or thing from proceeding or arriving
  204. intercessor
    a negotiator who acts as a link between parties
  205. interchangeable
    permitting mutual substitution without loss of function
  206. interconnected
    operating as a unit
  207. interdependent
    mutually reliant
  208. interdiction
    authoritative prohibition
  209. interest
    a sense of concern with and curiosity about something
  210. interesting
    catching or holding your attention
  211. interfaith
    involving persons of different religious faiths
  212. interlace
    spin, wind, or twist together
  213. interlocking
    linked or locked closely together as by dovetailing
  214. interlocutor
    a person who takes part in a conversation
  215. intermezzo
    a brief show (music or dance etc) inserted between the sections of a longer performance
  216. interminably
    all the time; seemingly without stopping
  217. intermission
    a time during which something is temporarily stopped or delayed
  218. interpolate
    insert words into texts, often falsifying it thereby
  219. interrelated
    connected with or affecting each other
  220. interrogatory
    relating to the use of or having the nature of an interrogation
  221. interruption
    an act or event that causes a delay or break in an ongoing activity
  222. intersect
    meet or cross at a point; overlap
  223. interstitial
    of or relating to small spaces between things
  224. intertwine
    spin, wind, or twist together
  225. interviewee
    a person who is interviewed
  226. intestate
    having made no valid will or not disposed of by a legal will
  227. in toto
    in entirety
  228. intoxication
    the physiological state produced by a poison or other toxic substance
  229. intracellular
    located or occurring within a cell or cells
  230. intransitive
    designating a verb that does not require or cannot take a direct object
  231. intricately
    with elaboration
  232. introduction
    the act of beginning something new
  233. introductory
    serving to open or begin
  234. introspect
    reflect on one's own thoughts and feelings
  235. intuitively
    in an intuitive manner
  236. invalidated
    deprived of legal force
  237. invertebrate
    any animal lacking a backbone or notochord
  238. investiture
    the ceremonial promotion of a person to an office or rank
  239. invigorated
    with restored energy
  240. invincibility
    the property being difficult or impossible to defeat
  241. in vitro
    in an artificial environment outside the living organism
  242. in vivo
    in the living organism
  243. invulnerability
    the property of being invulnerable
  244. ionic
    containing or involving electrically charged particles
  245. ipso facto
    by the fact itself
  246. irenic
    conducive to peace
  247. iridescence
    the visual property of having lustrous, varying colors
  248. iris
    colored part of the eye that controls the size of the pupil
  249. ironclad
    inflexibly entrenched and unchangeable
  250. irrationality
    the state of being irrational
  251. irreducible
    incapable of being made smaller or simpler
  252. irregularity
    not characterized by a fixed principle or rate
  253. irresistibility
    the quality of being overpowering and impossible to resist
  254. irresponsibility
    the trait of lacking trustworthiness or reliability
  255. irruption
    a sudden violent entrance; a bursting in
  256. island
    a land mass that is surrounded by water
  257. iterative
    marked by repetition
  258. ivory tower
    a state of mind that is discussed as if it were a place
  259. inhere
    exist in something in a permanent or firmly ingrained way
  260. itinerate
    travel from place to place, as for work
Created on Sun Dec 16 15:36:27 EST 2012 (updated Wed Mar 23 16:44:24 EDT 2016)

Sign up now (it’s free!)

Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.