Synonyms and related words :
absolute certainty, absoluteness, assurance, assuredness, certain knowledge, certainness, certainty, certitude, chastity, dead certainty, defectlessness, definiteness, determinacy, determinateness, faultlessness, finish, flawlessness, immaculateness, impeccability, ineluctability, inerrability, inerrancy, inevitability, infallibilism, necessity, nonambiguity, noncontingency, perfection, positiveness, predestination, predetermination, probatum, proved fact, purity, sinlessness, spotlessness, stainlessness, sureness, surety, taintlessness, truth, unambiguity, unequivocalness, univocity, unmistakableness