/ Thesaurus / F Synonyms of fretfulness Find synonyms for: Noun1. irritability, crossness, fretfulness, fussiness, peevishness, petulance, choler, ill humor, ill humour, distemperusage: an irritable petulant feelingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language