Englishfallacious
adjective
the fallacious assumption underlying this reasoning:
erroneous, false, untrue, wrong, incorrect, faulty, flawed, inaccurate, inexact, imprecise, mistaken, misinformed, misguided, misleading, deceptive, delusive, delusory, illusory, sophistic, specious, fictitious, spurious, fabricated, distorted, made up, trumped up;
baseless, groundless, unfounded, foundationless, unsubstantiated, unproven, unsupported, uncorroborated, ill-founded, without basis, without foundation;
informal bogus, phoney, iffy, dicey, full of holes, (way) off beam;
British, informal dodgy.
▷antonyms true, correct.