Adult

mencapai pertumbuhan atau pematangan lengkap, atau suatu organisme hidup yang telah mencapai pertumbuhan atau pematangan lengkap.

Merriam-Webster Online Dictionary
adult (adjective)
1.
fully developed and mature - grown-up
2.
of, relating to, intended for, or befitting - adults an adult approach to a problem
3.
dealing in or with explicitly sexual material - adult bookstores adult movies
adult (noun)
one that is adult , especially a human being after an age (as 21) specified by law
Merriam-Webster Online Thesaurus
adult (adjective)
1.
relating to or typical of adults; displaying proper maturity
SYNONYMS:
grown-up, mature
NEAR ANTONYMS:
childish, infantile, kiddish
adolescent, immature
adult (adjective)
2.
dealing in or with explicitly sexual material
SYNONYMS:
mature, pornographic, porny, X-rated
RELATED WORDS:
hard-core, soft-core; bedroom, erotic ( erotical), sexy, suggestive; bawdy, coarse, crude, dirty, filthy, foul, gross, indecent, lascivious, lewd, lustful, nasty, obscene, ribald, salacious, smutty, unprintable, vulgar, wanton; immodest, kinky, prurient; earthy, racy, salty; indecorous, unbecoming; debasing, perverted, profane; naughty, wicked
NEAR ANTONYMS:
priggish, prim, prudish, puritanical, straitlaced ( straightlaced), Victorian; correct, decent, decorous, genteel, polite, proper, seemly
clean, G-rated
adult (adjective)
3.
fully grown or developed
SYNONYMS:
adult, full-blown, full-fledged, matured, ripe, ripened
RELATED WORDS:
aged, aging ( ageing), long-lived, old, older; golden, mellow
NEAR ANTONYMS:
blooming, blossoming, burgeoning, flourishing, flowering; undeveloped, unfinished, unfledged, unformed
adolescent, green, immature, juvenile, unripe, unripened, young, youngish, youthful
adult (noun)
a fully grown person
SYNONYMS:
grown-up
RELATED WORDS:
middle-ager; ancient, elder, gaffer, graybeard, oldster, old-timer, senior, senior citizen
NEAR ANTONYMS:
bairn [], child, cub, kid, moppet, tad, toddler, tot, tyke ( tike); baby, infant; adolescent, juvenile, minor, youngling, youngster, youth; preteen, preteen-ager, teen, teenager, teener, teenybopper, tween
Adult (Wikipedia)
For other uses, see Adult (disambiguation).

Biologically, an adult is a human or other organism that has reached sexual maturity. In human context, the term adult additionally has meanings associated with social and legal concepts. In contrast to a "minor", a legal adult is a person who has attained the age of majority and is therefore regarded as independent, self-sufficient, and responsible.

Human adulthood encompasses psychological adult development. Definitions of adulthood are often inconsistent and contradictory; a person may be biologically an adult, and have adult behavior but still be treated as a child if they are under the legal age of majority. Conversely, one may legally be an adult but possess none of the maturity and responsibility that may define an adult character.

In different cultures there are events that relate passing from being a child to becoming an adult or coming of age. This often encompasses the passing a series of tests to demonstrate that a person is prepared for adulthood, or reaching a specified age, sometimes in conjunction with demonstrating preparation. Most modern societies determine legal adulthood based on reaching a legally specified age without requiring a demonstration of physical maturity or preparation for adulthood.