(n.) The state of being sure; certainty.

absolute certainty absoluteness acceptation acception acquiescence act of God arrogance assurance assuredness belief certain knowledge certainness certainty certitude cocksureness confidence confidentness conviction courage credence credit credulity dead certainty definiteness dependability dependence determinacy determinateness faith faithworthiness fate fatefulness force majeure hope hubris incorruptibility indefeasibility ineluctability inerrability inerrancy inescapableness inevasibleness inevitability inevitable accident inevitableness inexorability infallibilism infallibility inflexibility inviolability irrevocability necessity nonambiguity noncontingency overconfidence oversureness overweening overweeningness poise pomposity positiveness predestination predetermination pride probatum proved fact reception relentlessness reliability reliance reliance on responsibility security self-assurance self-confidence self-importance self-reliance settled belief stock store subjective certainty surety suspension of disbelief trust trustability trustiness trustworthiness truth unambiguity unavoidable casualty unavoidableness uncontrollability undeflectability unequivocalness unfalseness univocity unmistakableness unperfidiousness unpreventability untreacherousness unyieldingness vis major