/ Thesaurus / U Synonyms of unadventurous Find synonyms for: Adjective1. unadventurous (vs. adventurous), safe, cautious, timidusage: lacking in boldnessWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language