/ Thesaurus / B Synonyms of benedict arnold Find synonyms for: Noun1. Arnold, Benedict Arnoldusage: United States general and traitor in the American Revolution; in 1780 his plan to surrender West Point to the British was foiled (1741-1801)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language