adult

Adult is noun and an adjective, both of which refer to something mature, no longer a child. A full-grown person is called an adult: they can vote, rent cars, and choose to eat sugary cereal for dinner every night.

If you're still a child, then you are not an adult — that's the noun version. Childish people don't behave in an adult manner — that's the adjective. A child might be scared by the Wicked Witch of the West, but an adult knows she's not real. Learning the difference between real life and make-believe is one of the upsides of becoming an adult.

Definitions of adult
  1. noun
    a fully developed person from maturity onward
    synonyms: grownup
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    Antonyms:
    juvenile, juvenile person
    a young person, not fully developed
    types:
    show 202 types...
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    brachycephalic
    an adult with a short broad head
    caregiver
    a person who is responsible for attending to the needs of a child or dependent adult
    catch, match
    a person regarded as a good matrimonial prospect
    centrist, middle of the roader, moderate, moderationist
    a person who takes a position in the political center
    case, character, eccentric, type
    a person of a specified kind (usually with many eccentricities)
    conservative, conservativist
    a person who is reluctant to accept changes and new ideas
    dolichocephalic
    an adult with a long narrow head
    elder, senior
    a person who is older than you are
    ex-spouse
    a person who was formerly a spouse
    host
    a person who invites guests to a social event (such as a party in his or her own home) and who is responsible for them while they are there
    important person, influential person, personage
    a person whose actions and opinions strongly influence the course of events
    Jack of all trades
    a person able to do a variety of different jobs acceptably well
    liberal, liberalist, progressive
    a person who favors a political philosophy of progress and reform and the protection of civil liberties
    liberal
    a person who favors an economic theory of laissez-faire and self-regulating markets
    adult male, man
    an adult person who is male (as opposed to a woman)
    militarist, warmonger
    a person who advocates war or warlike policies
    golden ager, old person, oldster, senior citizen
    an elderly person
    disarmer, pacificist, pacifist
    someone opposed to violence as a means of settling disputes
    patrician
    a person of refined upbringing and manners
    pledgee
    someone to whom a pledge is made or someone with whom something is deposited as a pledge
    pledger
    someone who makes or gives a pledge
    professional, professional person
    a person engaged in one of the learned professions
    sobersides
    a serious and sedate individual
    man of the world, sophisticate
    a worldly-wise person
    homebody, stay-at-home
    a person who seldom goes anywhere; one not given to wandering or travel
    stoic, unemotional person
    someone who is seemingly indifferent to emotions
    thoroughbred
    a well-bred person
    adult female, woman
    an adult female person (as opposed to a man)
    Black man
    a man who is Black
    Black woman
    a woman who is Black
    white man
    a man who is White
    white woman
    a woman who is White
    amazon, virago
    a large, strong, and aggressive woman
    maenad
    (Greek mythology) a woman participant in the orgiastic rites of Dionysus
    ancient, antediluvian
    a very old person
    armchair liberal
    a person of liberal ideals who takes no action to realize them
    baboo, babu
    used as a Hindi courtesy title; equivalent to English `Mr'
    bachelor, unmarried man
    a man who has never been married
    bachelor girl, bachelorette
    a young unmarried woman who lives alone
    baggage
    a worthless or immoral woman
    ball-breaker, ball-buster
    a demanding woman who destroys men's confidence
    bey
    (formerly) a title of respect for a man in Turkey or Egypt
    B-girl, bar girl
    a woman employed by a bar to act as a companion to men customers
    big cheese, big deal, big enchilada, big fish, big gun, big shot, big wheel, head honcho
    an important influential person
    bas bleu, bluestocking
    a woman having literary or intellectual interests
    boy
    a friendly informal reference to a grown man
    beau, boyfriend, fellow, swain, young man
    a man who is the lover of a girl or young woman
    ex-boyfriend
    a man who is no longer a woman's boyfriend
    bridesmaid, maid of honor
    an unmarried woman who attends the bride at a wedding
    broad
    slang term for a woman
    Samson, bruiser, bull, strapper
    a large and strong and heavyset man
    capitalist
    a conservative advocate of capitalism
    careerist
    a professional who is intent on furthering his or her career by any possible means and often at the expense of their own integrity
    cat
    a spiteful woman gossip
    celebrity, famous person
    a widely known person
    centenarian
    someone who is at least 100 years old
    Cinderella
    a woman whose merits were not been recognized but who then achieves sudden success and recognition
    behemoth, colossus, giant, heavyweight, titan
    a person of exceptional importance and reputation
    conformist
    someone who conforms to established standards of conduct (especially in religious matters)
    coquette, flirt, minx, tease, vamp, vamper
    a seductive woman who flirts, often for personal gain
    cosmopolitan, cosmopolite
    a sophisticated person who has traveled in many countries
    craftsman
    a professional whose work is consistently of high quality
    critic
    a person who is professionally engaged in the analysis and interpretation of works of art
    curmudgeon
    a crusty irascible cantankerous old person full of stubborn ideas
    dame, gentlewoman, lady, ma'am, madam
    a woman of refinement
    beau, clotheshorse, dandy, dude, fashion plate, fop, gallant, sheik, swell
    a man who is much concerned with his dress and appearance
    dean, doyen
    a man who is the senior member of a group
    deb, debutante
    a young woman making her debut into society
    divorcee, grass widow
    a divorced woman or a woman who is separated from her husband
    ex, ex-wife
    a woman who was formerly a particular man's wife
    dodderer
    one who dodders from old age and weakness
    dodo, fogey, fogy, fossil
    someone whose style is out of fashion
    dominatrix
    a dominating woman (especially one who plays that role in a sadomasochistic sexual relationship)
    donna
    an Italian woman of rank
    dotard
    an oldster in his dotage; someone whose age has impaired his intellect
    dove, peacenik
    someone who prefers negotiations to armed conflict in the conduct of foreign relations
    doyenne
    a woman who is the senior member of a group
    educator, pedagog, pedagogue
    someone who educates young people
    elder statesman
    any influential person whose advice is highly respected
    eminence grise
    (French) a person who exercises power or influence in certain areas without holding an official position
    Delilah, enchantress, femme fatale, siren, temptress
    a woman who is considered to be dangerously seductive
    Esq, Esquire
    a title of respect for a member of the English gentry ranking just below a knight; placed after the name
    castrate, eunuch
    a man who has been castrated and is incapable of reproduction
    Excellency
    a title used to address dignitaries (such as ambassadors or governors); usually preceded by `Your' or `His' or `Her'
    eyeful
    a strikingly beautiful woman
    father figure, father surrogate
    a man who takes over all the functions of the real father
    father-figure
    a man (often a powerful or influential man) who arouses emotions usually felt for your real father and with whom you identify psychologically
    buster, dude, fellow
    an informal form of address for a man
    fixer, influence peddler
    someone who intervenes with authorities for a person in trouble (usually using underhand or illegal methods for a fee)
    fuddy-duddy
    a conservative who is old-fashioned or dull in attitude or appearance
    galoot
    a disreputable or clumsy person
    geisha, geisha girl
    a Japanese woman trained to entertain men with conversation and singing and dancing
    geezer
    a man who is (usually) old and/or eccentric
    gentleman
    a man of refinement
    fille, girl, miss, missy, young lady, young woman
    a young woman
    girl
    a friendly informal reference to a grown woman
    girl, girlfriend, lady friend
    a girl or young woman with whom a man is romantically involved
    girlfriend
    any female friend
    gold digger
    a woman who associates with or marries a rich man in order to get valuables from him through gifts or a divorce settlement
    divorced man, grass widower
    a man who is divorced from (or separated from) his wife
    gravida
    a pregnant woman
    bozo, cat, guy, hombre
    an informal term for a youth or man
    hardliner
    a conservative who is uncompromising
    back-number, has-been
    someone who is no longer popular
    hawk, war hawk
    an advocate of an aggressive policy on foreign relations
    PCP, caregiver, health care provider, health professional, primary care provider
    a person who helps in identifying or preventing or treating illness or disability
    heavy hitter
    an influential person who works hard to promote the causes they are interested in
    hierarch
    a person who holds a high position in a hierarchy
    heroine
    a woman possessing heroic qualities or a woman who has performed heroic deeds
    Herr
    a German man; used before the name as a title equivalent to Mr in English
    high-muck-a-muck, pooh-bah
    an arrogant or conceited person of importance
    Hooray Henry
    a lively and ineffectual upper-class young man
    hostess
    a woman host
    housefather
    a man in charge of children in an institution
    hunk
    a well-built, attractive man
    ex, ex-husband
    a man who was formerly a certain woman's husband
    inamorata
    a woman with whom you are in love or have an intimate relationship
    inamorato
    a man with whom you are in love or have an intimate relationship
    iron man, ironman
    a strong man of exceptional physical endurance
    ironside
    a man of great strength or bravery
    jezebel
    a shameless impudent scheming woman
    jilt
    a woman who jilts a lover
    kingmaker
    an important person who can bring leaders to power through the exercise of political influence
    bigwig, kingpin, top banana
    the most important person in a group or undertaking
    lady
    a polite name for any woman
    latitudinarian
    a person who is broad-minded and tolerant (especially in standards of religious belief and conduct)
    attorney, lawyer
    a professional person authorized to practice law; conducts lawsuits or gives legal advice
    bibliothec, librarian
    a professional person trained in library science and engaged in library services
    maenad
    an unnaturally frenzied or distraught woman
    magnifico
    a person of distinguished rank or appearance
    adonis
    any handsome young man
    materfamilias, matriarch
    a female head of a family or tribe
    matriarch
    a feisty older woman with a big bosom (as drawn in cartoons)
    matron
    a woman in charge of nursing in a medical institution or school
    mestiza
    a woman of mixed racial ancestry (especially mixed European and Native American ancestry)
    middle-aged man
    a man who is roughly between 45 and 65 years old
    minimalist
    a conservative who advocates only minor reforms in government or politics
    fancy woman, kept woman, mistress
    an adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man
    Monsieur
    used as a French courtesy title; equivalent to English `Mr'
    mossback
    an extremely old-fashioned conservative
    mother figure
    a woman who evokes the feelings usually reserved for a mother
    figure, name, public figure
    a well-known or notable person
    nanny, nurse, nursemaid
    a person who is the custodian of children
    neocon, neoconservative
    a conservative who subscribes to neoconservatism
    neoliberal
    a liberal who subscribes to neoliberalism
    nepotist
    a powerful person who shows favoritism to relatives or close friends
    nonagenarian
    someone whose age is in the nineties
    nullipara
    (obstetrics) a woman who has never give birth to a child
    houri, nymph
    a voluptuously beautiful young woman
    nymphet
    a sexually attractive young woman
    octogenarian
    someone whose age is in the eighties
    old boy
    a vivacious elderly man
    old boy, old man
    a familiar term of address for a man
    Methuselah, graybeard, greybeard, old man
    a man who is very old
    old woman
    a woman who is old
    paterfamilias, patriarch
    the male head of family or tribe
    pawnbroker
    a person who lends money at interest in exchange for personal property that is deposited as security
    Peter Pan
    a boyish or immature man; after the boy in Barrie's play who never grows up
    pluralist
    someone who believes that distinct ethnic or cultural or religious groups can exist together in society
    policy maker
    someone who sets the plan pursued by a government or business etc.
    ponce
    a man who is effeminate in his manner and fussy in the way he dresses
    posseman
    an able-bodied man serving as a member of a posse
    power broker, powerbroker
    a person who is important by virtue of the people or votes they control
    practician, practitioner
    someone who practices a learned profession
    publisher
    a person engaged in publishing periodicals or books or music
    extreme right-winger, reactionary, ultraconservative
    an extreme conservative; an opponent of progress or liberalism
    right-winger, rightist
    a member of a right wing political party
    sacred cow
    a person unreasonably held to be immune to criticism
    Senhor
    a Portuguese title of respect; equivalent to English `Mr'
    septuagenarian
    someone whose age is in the seventies
    sexagenarian
    someone whose age is in the sixties
    shaver
    an adult male who shaves
    shiksa, shikse
    a derogatory term used by Jews to refer to non-Jewish women
    signior, signor
    used as an Italian courtesy title; can be prefixed to the name or used separately
    signore
    an Italian title of respect for a man; equivalent to the English `sir'; used separately (not prefixed to his name)
    sir
    term of address for a man
    sirdar
    an important person in India
    slicker
    a person with good manners and stylish clothing
    beauty, dish, knockout, looker, lulu, mantrap, peach, ravisher, smasher, stunner, sweetheart
    a very attractive or seductive looking woman
    socialite
    a socially prominent person
    square, square toes
    a formal and conservative person with old-fashioned views
    stiff
    an ordinary man
    he-man, macho-man, stud
    a man who is virile and sexually active
    sun
    a person considered as a source of warmth or energy or glory etc
    sylph
    a slender graceful young woman
    Tarzan
    (sometimes used ironically) a man of great strength and agility (after the hero of a series of novels by Edgar Rice Burroughs)
    diehard, traditionalist
    one who adheres to traditional views
    unmarried woman
    a woman who is not married
    VIP, dignitary, high muckamuck, high-up, panjandrum, very important person
    an important or influential (and often overbearing) person
    vestal
    a chaste woman
    Wac
    a member of the Women's Army Corps
    Wave
    a member of the women's reserve of the United States Navy; originally organized during World War II but now no longer a separate branch
    Whig
    a member of the political party that urged social reform in 18th and 19th century England; was the opposition party to the Tories
    widow, widow woman
    a woman whose husband is dead especially one who has not remarried
    widower, widowman
    a man whose wife is dead especially one who has not remarried
    married woman, wife
    a married woman; a man's partner in marriage
    philanderer, womaniser, womanizer
    a man who likes many women and has short sexual relationships with them
    golden boy, wonder boy
    a man who is unusually successful at an early age
    wonder woman
    a woman who can be a successful wife and have a professional career at the same time
    worthy
    an important, honorable person (word is often used humorously)
    young buck, young man
    a teenager or a young adult male
    yuppie
    a young upwardly mobile professional individual; a well-paid middle-class professional who works in a city and has a luxurious life style
    type of:
    individual, mortal, person, somebody, someone, soul
    a human being
  2. noun
    any mature animal
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    type of:
    animal, animate being, beast, brute, creature, fauna
    a living organism characterized by voluntary movement
  3. adjective
    (of animals) fully developed
    “an adult animal”
    synonyms: big, full-grown, fully grown, grown, grownup
    mature
    having reached full natural growth or development
  4. adjective
    designed to arouse lust
    synonyms: pornographic
    sexy
    marked by or tending to arouse sexual desire or interest
Word Family