childish
childish
adjectiveDefinition of CHILDISH
having or showing the annoying qualities (as silliness) associated with children <you almost spoiled the ceremony for everyone with your childish giggling>
Related Words boyish, brattish, bratty, girlie (or girly), girlish; childlike, innocent, naive (or naïve), simple, simplistic, unsophisticated
Near Antonyms unchildlike; cosmopolitan, experienced, knowing, smart, sophisticated, worldly, worldly-wise
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