Word family noun maturity ≠ immaturity adjective mature ≠ immature verb mature adverb maturely ≠ immaturely
From Longman Dictionary of Contemporary Englishimmatureim‧ma‧ture /ˌɪməˈtʃʊə $ -ˈtʃʊr/ ●○○ AWL adjective 1 STUPID/NOT SENSIBLEsomeone who is immature behaves or thinks in a way that is typical of someone much younger – used to show disapproval SYN childish OPP mature He forgave his son’s immature behaviour.2 READYnot fully formed or developed measures to protect immature whales —immaturity noun [uncountable]Examples from the Corpus
immature• These birds are nearly always in winter plumage and presumably are immature.• I was 19 when I went to college, but still very immature.• These kids are brilliant, but often socially immature.• It may sound far-fetched, immature.• Let me show you that all men aren't as cruel and immature as your retarded merchant banker.• an immature plant• We were silly, immature teenagers, and we didn't know any better.• Despite immature theory and premature hype, researchers are moving ahead.• I was too emotionally immature to ask myself what my own expectations might be.• I think Jim's too immature to live on his own. 