Bedeutung von “childish” — Learner’s Dictionary

childish

adjective us uk /ˈtʃaɪldɪʃ/
SILLY

B2 Childish behaviour is silly, like that of a small child:

Don't be so childish!
OF CHILD

B2 typical of a child:

childish handwriting
childishly adverb
childishness noun [ U ]

(Definition von “childish” aus dem Cambridge Learner's Dictionary © Cambridge University Press)