Define incessant. incessant synonyms, incessant pronunciation, incessant translation, English dictionary definition of incessant. adj. Continuing without interruption. See Synonyms at continual. in·ces′san·cy n. in·ces′sant·ly adv. American Heritag
Define incessantness. incessantness synonyms, incessantness pronunciation, incessantness translation, English dictionary definition of incessantness. Noun 1. incessantness - the quality of something that continues without end or interruption ceaselessnes