/ Thesaurus / T Synonyms of tenaciousness Find synonyms for: Noun1. doggedness, perseverance, persistence, persistency, tenacity, tenaciousness, pertinacity, determination, purposeusage: persistent determinationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language