dubious Antonyms

trusting self-confident self-assured secure scrutable sanguine resolved resolvable resolute self-evident soluble solvable true transpicuous transparent sustainable sure steadfast staunch solved reliable recognizable readable perceptible penetrable pellucid patency pandemic palpable opinioned opinionative perspicuous pistic plain questionless proven provable probative probable presumable positive plausible opinionated trustworthy well-documented beyond dispute provably comprehendible unswerving unquestioning