What is the opposite of immature?

Need antonyms for immature? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts ▼▲ Opposite of being, or relating to those, of a young age Opposite of not fully mature or developed Opposite of annoyingly or embarrassingly immature in nature or behavior Opposite of having a naive or unsuspecting nature Opposite of for, or denoting, young or younger people Opposite of having little knowledge or experience of a particular thing Opposite of lacking sense, meaning, or purpose Opposite of newly produced or obtained Opposite of lacking intelligence or sense Opposite of foolish or lacking in sense Opposite of naive or innocent as a child would be Opposite of unwise (of an organ or body part) Opposite of having become biologically functionless in the course of evolution Opposite of somewhat small Opposite of rash … more ▼ ▲ Adjective ▲ Opposite of being, or relating to those, of a young age adult grown-up mature matured ripe experienced grown old older senile full-grown ripened full-blown fully-grown fully grown fully fledged developed sophisticated advanced sensible full-fledged manly adultish serious elderly responsible complete established aged wise senior veteran doddering ancient ageingUK hoary decrepit agingUS seasoned refined higher initiated settled evolved progressive improved perfected fully developed of age matronly moribund dying fledged later distinct grayUS olden worldly greyUK worldly-wise late infant postpubescent considered stable big middle-aged forward enhanced grownup geriatric centenarian grizzled octogenarian nonagenarian septuagenarian senescent venerable grown up mellow tottering dilapidated frayed rickety antiquated tattered high reasonable rational down-to-earth worn out soft fully-developed highly developed full grown levelheaded tender weary tired decaying waning over the hill more ❯ Adjective ▲ Opposite of not fully mature or developed developed fully-fledged ripened full-blown Adjective ▲ Opposite of annoyingly or embarrassingly immature in nature or behavior manly sensible sophisticated adultish serious wise full-grown fully-grown fully grown fully fledged Adjective ▲ Opposite of having a naive or unsuspecting nature cosmopolitan experienced knowing sophisticated worldly worldly-wise cultured earthly material refined mature knowledgeable astute cultivated enlightened grasping perceptive seasoned hardened shrewd guileful streetwise smart wise politic aware matured worldly-minded street smart street-smart educated advanced deceitful dishonest upper-class artful savvy wily intelligent worldly wise well-traveled Adjective ▲ Opposite of for, or denoting, young or younger people older senior elder higher-ranking superior Adjective ▲ Opposite of having little knowledge or experience of a particular thing experienced adult grown-up mature ripe familiar knowledgeable practicedUS practisedUK seasoned skilled tasty trained versed educated old schooled accomplished qualified veteran professional expert adept proficient competent capable great master skillfulUS consummate ace good crackerjack virtuoso skilfulUK masterful adroit crack savvy tried well versed pro worldly accustomed well-versed hardened long-serving polished elite cultivated excellent exceptional able fine specialist cultured initiated clever apt wonderful au fait magnificent outstanding marvellousUK superb talented brilliant stellar professed handy dexterousUS sharp complete dazzling class mean knowing slick bravura leet genius sophisticated top-notch first-rate first-class out of this world dextrousUK marvelousUS tested weathered up to speed worldly-wise long-time old-time inured wise to ways battle-scarred old hand not born yesterday been around been there in the know broken in of the old school masterly dynamite refined instructed well trained more ❯ Adjective ▲ Opposite of lacking sense, meaning, or purpose sensible significant meaningful intelligent serious bright profound smart weighty worthwhile Adjective ▲ Opposite of newly produced or obtained old ancient outdated aged antediluvian antiquated dated expired archaic defunct extinct fusty obsolete outmoded antique mediaevalUK medievalUS obsolescent outworn passé prehistoric prehistorical rusty creaky moribund neolithic parachronistic out of date “Let's throw out the old and expired goods in our pantry.” Adjective ▲ Opposite of lacking intelligence or sense apt brainy bright brilliant clever fast hyperintelligent intelligent keen nimble quick quick-witted sharp sharp-witted smart supersmart ultrasmart Adjective ▲ Opposite of foolish or lacking in sense sensible judicious prudent sagacious sage sane sapient sound wise considered intelligent smart thoughtful shrewd perceptive astute worldly serious mature reasonable rational responsible logical unfrivolous sober earnest pragmatic learned punctilious cultured meticulous dependable sophisticated levelheaded reasoned enlightened refined well-grounded serious-minded level-headed sharp insightful discerning clever guileful profound crafty cynical wily observant knowing foxy alert accurate untrusting discriminating acute tricky hardheaded savvy scepticalUK farsighted calculating devious wary ingenious argute incredulous cunning perspicacious calculated unbelieving suspecting streetwise suspicious sly heady subtle slick artful beguiling astucious canny scheming brainy skepticalUS sharp-witted clear-sighted clear-eyed wised up quick-witted on the ball more ❯ Adjective ▲ Opposite of naive or innocent as a child would be complicated jaded untrusting Adjective ▲ Opposite of unwise careful cautious wise Adjective ▲ (of an organ or body part) Opposite of having become biologically functionless in the course of evolution complete developed functional perfect practical useful well developed Adjective ▲ Opposite of somewhat small big biggish considerable goodly grand great handsome husky king-size king-sized large largish outsize outsized overscale overscaled oversize oversized sizable sizeable substantial tidy whacking whopping huge king size Adjective ▲ Opposite of rash afraid cowardly fearful meek reasonable shy timid Find more words! 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Sentences with the word immature Words that rhyme with immature What is the plural of immature? What is the adverb for immature? What is the adjective for immature? What is the noun for immature? Translations for immature Use our Antonym Finder Nearby Words immaturely immaturities immaturity immeasurability immeasurable immeasurableness immaterial to immaterialness immaterially immateriality immaterialities immaterial 8-letter Words Starting With i im imm imma immat immatu immatur