ppl. a. (UN-1 8.)
1553. Brende, Q. Curtius, III. 25. It was the thing that he doubted moste, that they should inuade the open side of his battaile whiche lay vnflancked towardes them.
1756. Home, Douglas, III. iii. 40. Water-wafted armies, whose chief strength Lies in firm foot, unflankd with warlike horse.
1870. Milit. Engineering, I. v. 333. The points selected for assault should be, if possible, unflanked parts of the work.