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English definition of “childish”

childish

adjective
 
 
/ˈtʃaɪldɪʃ/
SILLY B2 Childish behaviour is silly, like that of a small child: Don't be so childish!Physically and mentally mature and immature
OF CHILD B2 typical of a child: childish handwritingPhysically and mentally mature and immatureChildren and babies
childishly adverb childishness noun [U]
(Definition of childish from the Cambridge Learners Dictionary © Cambridge University Press)
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