/ Thesaurus / I Synonyms of interminably Find synonyms for: Adverb1. interminably, endlesslyusage: all the time; seemingly without stopping; "a theological student with whom I argued interminably"; "her nagging went on endlessly"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language