The word "unintermittedly" refers to an action or process that continues without interruption. Its antonyms include "intermittently," which means occurring at irregular intervals or with breaks in between, and "sporadically," which means occurring occasionally, scattered, or not regularly. Other antonyms for "unintermittedly" include "halted," "stopping," "ceasing," "paused," or "broken." These words indicate the opposite of continuous or constant activity. When used in a sentence, the choice of antonyms for "unintermittedly" will depend on the context and the desired emphasis.