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English definition of “adult”

adult

adjective    /əˈdʌlt, ˈæd·ʌlt/
grown to full size and strength: More than half of adult Americans are considered overweight. Adult also means suitable for grown people and not children: It’s a kids’ show, but they sneak in some adult humor. Adult movies, magazines, shows, and books include content that is intended for adults only. adult    /əˈdʌlt, ˈæd·ʌlt/ noun [C] We invited only adults to the wedding. adulthood    /əˈdʌltˌhʊd/ noun [U] When she reached adulthood, she moved away.
(Definition of adult adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
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