mordantly,adv.|ˈmɔːdəntlɪ| [f. mordant a. + -ly2.] a. In a mordant manner; bitingly. b. In the manner of a mordant. 1836New Monthly Mag. XLVI. 205 To lay to her heart more mordently the serpents of jealousy and despair.1849in Craig; and in later Dicts.