| Adj. | 1. | spurious - plausible but false; "specious reasoning"; "the spurious inferences from obsolescent notions of causality"- Ethel Albertinvalid - having no cogency or legal force; "invalid reasoning"; "an invalid driver's license" | |
| 2. | spurious - born out of wedlock; "the dominions of both rulers passed away to their spurious or doubtful offspring"- E.A.Freemanillegitimate - of marriages and offspring; not recognized as lawful | |
| 3. | spurious - intended to deceive; "a spurious work of art"counterfeit, imitative - not genuine; imitating something superior; "counterfeit emotion"; "counterfeit money"; "counterfeit works of art"; "a counterfeit prince" | |