updates | April 07, 2026 Definitions of imposterous - OneLook Definitions from Wiktionary (imposterous)▸ adjective: (obsolete) fraudulent; pretending to be someone elseimpostrous, humbuggish, fake, supposititious, deceptious, bogus, counterfeit, fraudulent, pseudo, abusive, more...▸ Words similar to imposterous▸ Usage examples for imposterous▸ Idioms related to imposterous▸ Civic discussion about imposterous (New!)▸ Popular nouns described by imposterous▸ Words that often appear near imposterous▸ Rhymes of imposterous▸ Invented words related to imposterous
