Meaning of immature in English immatureadjective uk Your browser doesn't support HTML5 audio /ˌɪm.əˈtʃʊər/ us Your browser doesn't support HTML5 audio /ˌɪm.əˈtʊr/ Add to word list Add to word list C2 disapproving not behaving in a way that is as calm and wise as people expect from someone of your age: Stop being so silly and immature, Chris! She's rather immature for her age, don't you think? Synonyms childish disapproving juvenile disapproving puerile disapproving disapproving not having much experience of something: politically immature biology specialized not yet completely grown or developed: While the animals are still immature, they do not breed. SMART Vocabulary: related words and phrases Physically and mentally mature & immature adult adulting ageing babyish childish grown up immaturely immaturity infantile juvenile over-mature overgrown petulance petulancy petulant precociousness puerile puerility sophomoric young at heart idiom See more results » Related word immaturity (Definition of immature from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) immature | American Dictionary immatureadjective us Your browser doesn't support HTML5 audio /ˌɪm·əˈtʃʊər, -ˈtʊər/ Add to word list Add to word list not completely developed physically, mentally, or emotionally, or lacking the expected type of responsible behavior for your age: Some of the boys in my class are so immature – they’re always doing silly things. immaturity noun [ U ] us Your browser doesn't support HTML5 audio /ˌɪm·əˈtʃʊər·ɪ·t̬i, -ˈtʊər-/ physical/emotional immaturity (Definition of immature from the Cambridge Academic Content Dictionary © Cambridge University Press) What is the pronunciation of immature? C2 Translations of immature in Chinese (Traditional) 不成熟的, 沒經驗的, 未長成的,發育未全的… See more in Chinese (Simplified) 不成熟的, 没经验的, 未长成的,发育未全的… See more in Spanish inmaduro, no maduro, inmaduro/ura [masculine-feminine]… See more in Portuguese imaturo, imaturo/-ra… See more in more languages in Japanese in Turkish in French in Catalan in Dutch in Arabic in Czech in Danish in Indonesian in Thai in Vietnamese in Polish in Malay in German in Norwegian in Korean in Ukrainian in Italian in Russian 未熟な, 子供(こども)っぽい, 未熟(みじゅく)な… See more olgunlaşmamış, çocuksu, gelişmemiş… See more immature, vert, jeune… See more immadur… See more onvolwassen, onvolgroeid, onrijp… See more غَيْر ناضِج… See more nedospělý, nezralý… See more umoden, ikke helt udviklet… See more kekanak-kanakan, masih hijau… See more ที่เป็นเด็ก, ที่ไม่เป็นผู้ใหญ่, ที่ยังไม่โตเต็มที่… See more như trẻ con, chưa chín chắn… See more niedojrzały… See more kebudak-budakan, belum masak… See more unreif… See more umoden, uutviklet, barnslig… See more 미숙한… See more юний, інфантильний, незрілий… See more immaturo, non maturo, acerbo… See more незрелый, неокончательно развившийся, молодой… See more Need a translator? Get a quick, free translation! Translator tool Browse immanent immanently immaterial immateriality immature immaturely immaturity immeasurable immeasurably