specious

Seemingly sound, false

Specious describes something that appears true, sound, or valid on the surface but is actually false or flawed: a specious argument, specious reasoning.

The word carries an accusation—what looks plausible is in fact deceptive.

A specious claim might fool you at first glance but crumbles under scrutiny.

deceptive

fallacious

Containing faulty reasoning

false · bogus · phony · disingenuous · fraudulent · sham · counterfeit · insincere · duplicitous · hollow

superficial

veneer

Decorative outer layer

appearance · semblance · pretense · show · front · guise · mask · window dressing · cosmetic · skin-deep

reasoning

sophistry

Deceptive reasoning

rationalization · argument · logic · premise · rhetoric · equivocation · quibble · hair-splitting · non sequitur · red herring

plausibility

believable

Able to convince

apparent · ostensible · seeming · colorable · prima facie · face value

Opposites
logical validity

speciousvalid

Legally or logically sound

sound · cogent · legitimate · well-founded · substantive

authenticity/genuineness

speciousgenuine

Truly what it claims

real · authentic · true · bona fide · actual

communicative honesty

speciousforthright

Directly honest in manner

straightforward · candid · honest · frank · direct

Family

speciousness, speciously

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G