sureness

1 a state of mind in which one is free from doubt unfortunately, he lacked the sureness of his opponent in the tennis match Synonyms assurance, assuredness, certainty, certitude, cocksureness, conviction, doubtlessness, face, positiveness, satisfaction, confidence, suretyRelated Words authoritarianism, dogmatism; decisiveness, determination, firmness, purposefulness, resoluteness, resolution, resolveNear Antonyms hesitancy, hesitation, indecisiveness, irresolution; disbelief, incredulity, unbelief; anxiety, concern, misgiving; distrust, mistrust, suspicionAntonyms doubt, incertitude, nonconfidence, uncertainty

2 worthiness as the recipient of another's trust or confidence investors in those risky foreign enterprises were gambling on the sureness of their instincts Synonyms dependability, dependableness, reliableness, responsibility, solidity, solidness, reliability, trustability, trustworthinessRelated Words inerrancy, infallibility; credibility, creditability, creditablenessNear Antonyms doubtfulness, dubiousness, questionableness, shakiness, uncertainnessAntonyms dodginess [chiefly British], unreliability