Synonyms to made sure

ascertained, actual, appreciated, apprehended, assured, attested, authenticated, borne out, categorically true, certain, certified, circumstantiated, comprehended, conceived, confirmed, corroborated, decided, demonstrated, determinate, determined, discerned, documentary, down pat, effectual, established, factual, fixed, grasped, guaranteed, historical, in the bag, known, nailed down, not in error, objectively true, on ice, open-and-shut, pat, perceived, prehended, proved, proven, real, realized, recognized, secure, seized, set, settled, shown, stated, substantiated, sure-enough, tested, tried, true, true as gospel, truthful, unconfuted, undenied, understood, undoubted, unerroneous, unfallacious, unfalse, unmistaken, unquestionable, unrefuted, validated, veracious, verified, veritable, warranted, affianced, arrogant, aspiring, assurance, assuredness, balanced, believing, betrothed, bound, certitude, clear-cut, cocksure, collected, committed, composed, compromised, confidence, confident, contracted, conviction, convinced, cool, covered, defi