certain Antonyms

uncertain ambiguous unsettled tentative undecided questionable doubtful iffy unclear unsure unpredictable dubious debatable imprecise indeterminate indecisive contingent indefinite susceptible substract threatening sub judice transitional timorous stochastic supposed theoretical suspect suspicious sweeping torn suppositive suppositional temperamental tester theoretic touchy transcendent transcendental unfounded unlikely unmeaning unpractical unreasoned unreliable unsound unstable unstrained untitled untrue