- Simple past tense and past participle of confirm.
- having a settled habit; inveterate or habitual
- a confirmed liar
- verified or ratified
- a confirmed treaty
- (Christianity) having received the rite of confirmation
- a confirmed Catholic
accepted, accustomed, acknowledged, actual, admitted, affirmed, allowed, approved, ascertained, attested, authenticated, avowed, borne out, categorically true, certain, certified, chronic, circumstantiated, conceded, confessed, corroborated, countersigned, deep-dyed, deep-engraven, deep-fixed, deep-grounded, deep-laid, deep-rooted, deep-seated, deep-set, deep-settled, demonstrated, determined, documentary, dyed-in-the-wool, effectual, embedded, embossed, endorsed, engrafted, engraved, entrenched, established, etched, factual, fast, firmly established, fixed, granted, graven, habituated, historical, implanted, impressed, imprinted, incorrigible, inculcated, indelibly impressed, infixed, ingrained, ingrown, instilled, inveterate, inwrought, irreversible, long-established, not in error, notarized, objectively true, old-line, on a rock, on bedrock, professed, proved, proven, ratified, real, received, recognized, rooted, sealed, set, settled, settled in habit, shown, signed, stabilized, stamped, substantiated, sure-enough, sworn, sworn and affirmed, sworn to, tested, thorough, tried, tried and true, true, true as gospel, truthful, unconfuted, undenied, underwritten, undoubted, unerroneous, unfallacious, unfalse, unmistaken, unquestionable, unrefuted, validated, veracious, verified, veritable, vested, warranted, well-established, well-founded, well-grounded, well-set, well-settled