An Encylopedia Britannica Company

adult

1 adult ˈdʌlt/ /ˈæˌdʌlt/ noun
plural adults
1 adult
ˈdʌlt/ /ˈæˌdʌlt/
noun
plural adults
Britannica Dictionary definition of ADULT
[count]
: a fully grown person or animal
2 adult ˈdʌlt/ /ˈæˌdʌlt/ adjective
2 adult
ˈdʌlt/ /ˈæˌdʌlt/
adjective
Britannica Dictionary definition of ADULT
always used before a noun except in sense 2
: fully grown and developed
[more adult; most adult] : mature and sensible : not childish
: of or intended for adults
: dealing with sexual material

— adulthood

ˈdʌltˌhʊd/ noun, plural adulthoods