Adjective spurious has 3 senses
- specious, spurious - plausible but false; "specious reasoning"; "the spurious inferences from obsolescent notions of causality"- Ethel Albert
Antonym: valid (indirect, via invalid)
- bastard, bastardly, misbegot, misbegotten, spurious - born out of wedlock; "the dominions of both rulers passed away to their spurious or doubtful offspring"- E.A.Freeman
Antonym: legitimate (indirect, via illegitimate)
- inauthentic, unauthentic, spurious - intended to deceive; "a spurious work of art"
Antonyms: genuine, echt (indirect, via counterfeit)
,