List of historical synonyms and historical related words.
absolute, actual, admitting no question, ascertained, attested, authentic, authenticated, autobiographical, biographical, categorically true, certain, certified, chronologic, confirmable, confirmed, corroborated, de facto, demonstrable, demonstratable, demonstrated, determined, documentary, documented, effectual, established, factual, for real, genuine, hagiographic, historic, historied, historiographic, honest-to-God, inappealable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, irrefutable, legendary, martyrologic, not in error, objectively true, positive, provable, proved, real, recorded, reliable, self-evident, substantial, substantiated, sure-enough, testable, traditional, true, true as gospel, truthful, unanswerable, unconfutable, unconfuted, undeniable, undenied, undoubted, unerroneous, unfallacious, unfalse, unimpeachable, unmistaken, unquestionable, unrefutable, unrefuted, validated, veracious, verifiable, verified, veritable