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 little knowledge or experience of a particular thing (figuratively, of people) Opposite of having a naive or unsuspecting nature Opposite of newly produced or obtained Opposite of lacking intelligence or sense Opposite of foolish or lacking in sense Opposite of having faults or errors Opposite of naive or innocent as a child would be Opposite of unwise Opposite of somewhat small Opposite of rash Opposite of existing but not yet developed or manifest … 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 sophisticated developed advanced sensible full-fledged manly adultish worldly serious elderly worldly-wise refined responsible aged wise knowing cosmopolitan senior veteran complete doddering ancient ageingUK hoary decrepit seasoned established agingUS initiated cultured fully developed of age matronly moribund dying later higher fledged progressive infant earthly material distinct grayUS olden greyUK weary tired decaying waning big middle-aged considered settled stable grownup evolved over the hill mellow reasonable improved rational down-to-earth soft perfected levelheaded tender fully-developed highly developed full grown deceitful dishonest upper-class geriatric centenarian grizzled octogenarian nonagenarian septuagenarian senescent venerable grown up tottering dilapidated frayed rickety antiquated tattered worn out 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 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 ▲ (figuratively, of people) Opposite of having a naive or unsuspecting nature worldly hardened knowing sophisticated aware knowledgeable mature astute cultivated enlightened grasping perceptive seasoned cosmopolitan worldly-minded worldly-wise experienced cultured shrewd guileful streetwise smart wise politic matured street smart street-smart educated artful savvy wily intelligent worldly wise well-traveled “These kinds of horror stories might scare kids, but they're unlikely to scare worldly adults.” 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 serious profound shrewd perceptive astute worldly mature rational reasonable responsible logical significant meaningful unfrivolous sober earnest bright weighty worthwhile pragmatic learned punctilious cultured meticulous dependable sophisticated levelheaded reasoned enlightened refined well-grounded serious-minded level-headed sharp insightful discerning clever guileful crafty cynical wily observant knowing foxy alert accurate untrusting discriminating acute tricky hardheaded savvy scepticalUK farsighted calculating devious argute incredulous wary ingenious cunning unbelieving perspicacious calculated streetwise sly heady subtle suspecting suspicious slick artful beguiling astucious canny scheming skepticalUS brainy far-sighted sharp-witted clear-sighted clear-eyed wised up quick-witted on the ball more ❯ Adjective ▲ Opposite of having faults or errors perfect flawless faultless impeccable complete developed exact finished excellent happy healthy infallible moral pure unblemished unflawed well functional practical useful well developed Adjective ▲ Opposite of naive or innocent as a child would be complicated jaded untrusting Adjective ▲ Opposite of unwise careful cautious wise 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 Adjective ▲ Opposite of existing but not yet developed or manifest manifest active functioning employed live realisedUK realizedUS patent alive apparent clear conspicuous evident obvious operating operative expressed going living on open overt running visible working developed “The intoxication was manifest, not so much in violent behavior as in slightly heightened color and increasing loquacity.” 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 adjective for immature? What is the noun for immature? What is the adverb 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