To (cause to) be or become an adult.
To behave like an adult.
Containing situations or discussions intended primarily for adults, such as serious crime, illicit drug use, extramarital affairs, etc.
Containing marijuana, intended for consumption only by adults.
Fully grown.
Containing material of an explicit sexual nature; of, or pertaining to, pornography.
Containing excessive vulgar or profane speech, text or images, intended only for adults.
Intended for or restricted to adults rather than children due to size, maturity, knowledge level, judgement, etc.
Containing alcohol, intended for consumption only by adults.
A fully grown human or animal.
A person who has reached the legal age of majority.
Able to be neglected, ignored or excluded from consideration; too small or unimportant to be of concern.