Synonyms and related words :
actual, ascertained, assured, attested, authenticated, borne out, categorically true, certain, certified, circumstantiated, confirmed, corroborated, decided, demonstrated, determinate, determined, documentary, effectual, established, factual, fixed, guaranteed, historical, in the bag, made sure, nailed down, not in error, objectively true, on ice, open-and-shut, proven, real, secure, set, settled, shown, stated, substantiated, sure-enough, tested, tried, tried and true, TRUE, true as gospel, truthful, unconfuted, undenied, undoubted, unerroneous, unfallacious, unfalse, unmistaken, unquestionable, unrefuted, validated, veracious, verified, veritable, warranted