/ Thesaurus / U Synonyms of unfastidious Find synonyms for: Adjective1. unfastidious (vs. fastidious)usage: not exacting in nutritional requirements2. unfastidious (vs. fastidious), unrefined, untidyusage: marked by an absence of due or proper care or attention to detail; not concerned with cleanliness; "unfastidious in her dress"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language