Adj. | 1. | specious - plausible but false; "a specious claim"; "spurious inferences" false - not in accordance with the fact or reality or actuality; "gave false testimony under oath"; "false tales of bravery" |
2. | ![]() insincere - lacking sincerity; "a charming but thoroughly insincere woman"; "their praise was extravagant and insincere" |