/ Thesaurus / B Synonyms of bottomlessness Find synonyms for: Noun1. bottomlessness, deepness, profundity, profoundnessusage: the property of being very deep; without limitWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ingenuity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language