implausible Antonyms

plausible as safe as houses reliable reasonable rational questionless prudent probably probable presumptively presumptive presumable practical practicable possibly possible poss solid strong liable to as easy as shooting fish in a barrel as easy as beans as easy as falling off a log without question thought out assertable achievability valid undoubted trustworthy true thinkable tenable sure supposable pat ostensive certain canny brilliant bright brainy believable attainable astute argute arguable affirmable advisable acute