unadult

adjective
un·​adult | \ ˌən-ə-ˈdəlt How to pronounce unadult (audio) , -ˈa-ˌdəlt\

Definition of unadult

: not adult : not characteristic of or befitting an adult unadult behavior There is something profoundly unadult in all Bogdanovich's descriptions of women.— Lynn Barber

First Known Use of unadult

1944, in the meaning defined above

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