a. (UN-1 7.)
1850. J. H. Newman, Diffic. Anglic., 130. Which has been in unintermittent traditionary error.
1883. J. Gilmour, Mongols, 261. The unintermittent feasting lasts about a week.
Hence Unintermittently adv.
1875. Wonders of Phys. World, I. ii. 100. Their ruins crumble unintermittently!