Definition of "blackguard" (old-fashioned, usually used only of men) A scoundrel ; an unprincipled contemptible person ; an untrustworthy person . quotations examples
Quotations Pawn another man 's property for the sake of a meal , eat and drink one 's self to perdition , brand one 's soul with the first little sear , set the first black mark against one 's honour , call one 's self a blackguard to one 's own face , and needs must cast one 's eyes down before one 's self ? Never ! never !
1899, Knut Hamsun, “Part I”, in George Egerton [pseudonym; Mary Chavelita Dunne Bright], transl., Hunger […], London: Leonard Smithers and Co […], page 68
verb third-person singular simple present blackguards , present participle blackguarding , simple past and past participle blackguarded