1. (

• spurious

) ostensibly valid, but not actually valid; "a spurious argument" ;

2. (

• specious ,
• spurious

) plausible but false; "a specious claim"; "spurious inferences" ;

3. (

• bastardly ,
• misbegot ,
• misbegotten ,
• spurious

) born out of wedlock; "the dominions of both rulers passed away to their spurious or doubtful offspring"- E.A.Freeman ;

4. (

• inauthentic ,
• unauthentic ,
• spurious

) false or fake; not what it appears to be; "a spurious work of art" ;