| Slumberless (a.) Without slumber; sleepless. Thesaurus Entries alertness, all-night vigil, consciousness, insomnia, insomnious, insomnolence, insomnolency, lidless vigil, restless, restlessness, sentience, sleepless, sleeplessness, slumberless, tossing and turning, unsleeping, vigil, wake, wakeful, wakefulness |