Fallacious :: Fallacious (a.) Embodying or pertaining to a fallacy; illogical; fitted to deceive; misleading; delusive; as, fallacious arguments or reasoning..
Fallacy :: Fallacy (n.) Deceptive or false appearance; deceitfulness; that which misleads the eye or the mind; deception.
Fallacy :: Fallacy (n.) An argument, or apparent argument, which professes to be decisive of the matter at issue, while in reality it is not; a sophism..