certainty

Synonyms: all sewn up authoritativeness belief certitude cinch confidence conviction credence definiteness dogmatism faith firmness indubitableness inevitability lock lockup open and shut case positiveness positivism rain or shine setup shoo-in staunchness steadiness stock store sure bet surefire sureness sure thing surety trust validity wrap-up

Antonyms: ambiguity doubt hesitation questionableness uncertainty

Synonyms: consequence foregone conclusion inevitable result reality sure thing surety

Antonyms: concept idea theory