adult

noun adults

1. An animal that is full-grown. The young not only differs from the adult by the presence of its gills, but its feet are only developed by degrees, and in several genera there are also a deciduous beak and tail, and intestines of a different form

   Similar: grown up

2. A person who has reached the legal age of majority.

Similar: adult, grown-up, grownup, growed-up, postpubescent · Opposite: child, youngling

adjective more adult · most adult

1. Fully grown. an adult human, animal, or plant

   Similar: big

2. Intended for or restricted to adults rather than children due to size, maturity, knowledge level, judgement, etc. adult clothes; adult cereal; an adult documentary
3. Containing situations or discussions intended primarily for adults, such as serious crime, illicit drug use, extramarital affairs, etc. adult situations; adult discussions

   Similar: grown up

4. of a beverage Containing alcohol, intended for consumption only by adults. an adult drink; an adult root beer float
5. usually, of a cookie Containing marijuana, intended for consumption only by adults. an adult cookie; adult gummy worms
6. Containing material of an explicit sexual nature; pornographic. an adult movie

   Similar: pornographic

7. Containing excessive vulgar or profane speech, text or images, intended only for adults. adult language; an adult cartoon
8. Intended for, or restricted to, those who are not young children. an adult menu; an adult fare

Similar: fully grown, grown up, for adults, X-rated, XXX, XXXX, blue, indecent, obscene, salacious

verb adults · adulting · adulted

1. intransitive, slang To behave like an adult. Adulting is hard!
2. intransitive, nonstandard, rare To (cause to) be or become an adult. Womanhood was achieved at twenty-one, when the female was "adulted"; manhood was fully achieved at twenty-five, […]