Syn. -- Plausible, Specious. Plausible denotes that which seems
reasonable, yet leaves distrust in the judgment. Specious describes
that which presents a fair appearance to the view and yet covers
something false. Specious refers more definitely to the act or purpose
of false representation; plausible has more reference to the effect on
the beholder or hearer. An argument may by specious when it is not
plausible because its sophistry is so easily discovered.