† inˈficious,a.Obs.rare—1. [f. L. inficiæ, infitiæ denial (see inficial) + -ous.] Given to denying. 1623Something Written by Accid. Blacke Friers 4 When..we are to deale with such Antagonists, and inficious aduersaries, wee may well vse the language of Canaan.