adv. (UN-1 11: cf. prec.)
1583. Babington, Commandm. (1590), 216. These boiling hearts not bearing iust reproofe, vnduetyfullie haue often repined at their authoritie.
16435. Milton, Divorce, II. xvi. It justifies a man in so doing, that nothing is done undutifully to father or mother.
1693. Drydens Juvenal, IV. (1697), 79. The Fish had long in Cæsars Ponds been fed, And from its Lord undutifully fled.
1824. Scott, St. Ronans, xviii. He had a son who most undutifully laughed at all this.
1849. Macaulay, Hist. Eng., iv. I. 457. The guilt of having acted undutifully and disrespectfully towards France.