immature C2+ Topic:Describing Qualities US /ˌɪməˈtʊr/ UK /ˌɪməˈtjʊə/ See IPA manual Meanings 1 adj not fully developed; childish in behavior His immature pranks annoyed the rest of the office. Thesaurus Synonyms 1 adj · not fully developed;... undevelopedchildishjuvenileunripecallowpuerile ↔ Opposites matureadultripedevelopedseasoned Word family Derived forms immaturelyimmaturityimmatureness Related forms maturematuritypremature Etymology AI details From Latin immaturus ('unripe, untimely'), from in- ('not') + maturus ('ripe, timely'). immaturus Latin maturus Latin View etymology graph -> Topics Describing Qualities External links Cambridge Dictionary Wiktionary Google Images # immature **Type:** Word **Level:** C2+ **Part of speech:** adj **IPA (US):** /ˌɪməˈtʊr/ **IPA (UK):** /ˌɪməˈtjʊə/ ## Meanings 1. not fully developed; childish in behavior ## Examples - His immature pranks annoyed the rest of the office. ## Synonyms - undeveloped - childish - juvenile - unripe - callow - puerile ## Antonyms - mature - adult - ripe - developed - seasoned ## Derived Forms - immaturely - immaturity - immatureness ## Related Forms - mature - maturity - premature ## Roots and Affixes - Root: immaturus - Root: maturus - Affix: im- - not ## Etymology From Latin immaturus ('unripe, untimely'), from in- ('not') + maturus ('ripe, timely'). ## AI Etymology Immature is from Latin immaturus ('unripe, untimely'), from in- ('not') + maturus ('ripe, timely'). In present-day use, it means not fully developed; childish in behavior. Derived formations include immaturely, immaturity, and immatureness. Related vocabulary includes mature, maturity, and premature. ## Topics - Describing Qualities markdown