containing or based on a fallacy; fallacious reasoning; an unsound argument

[ Syn: unsound ]

intended to deceive; deceitful advertising; fallacious testimony; smooth, shining, and deceitful as thin ice - S.T.Coleridge; a fraudulent scheme to escape paying taxes

[ Syn: deceitful , fraudulent ]

based on an incorrect or misleading notion or information; fallacious hope'