adv. (UN-1 11; cf. prec.)
1782. Ann. Reg., Hist., 85/2. An infinite number of rockets were unintermittingly thrown.
1809. Pinkney, Trav. France, 164. The attention of the French Government is now unintermittingly occupied.
1885. J. Payn, Talk of Town, I. 103. He now resolved to cultivate it [i.e., his fathers favour] unintermittingly, and at any sacrifice.