specious

Having the ring of truth or plausibility but actually fallacious.

Deceptively appealing.

Pleasing to the eye; externally fair or showy; appearing beautiful or charming; sightly; beautiful.

Superficially fair, just, or correct; appearing well; apparently right; plausible; beguiling: as, specious reasoning; a specious argument; a specious person or book.

Appearing actual, or in reality; actually existing; not imaginary.

Pertaining to species or a species.

Synonyms Colorable, Plausible, etc. See ostensible.

Presenting a pleasing appearance; pleasing in form or look; showy.

Apparently right; superficially fair, just, or correct, but not so in reality; appearing well at first view; plausible

Seemingly well-reasoned or factual, but actually fallacious or insincere; strongly held but false.