/ Thesaurus / L Synonyms of lupin Find synonyms for: Noun1. lupine, lupin, woody plant, ligneous plantusage: any plant of the genus Lupinus; bearing erect spikes of usually purplish-blue flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: imprudent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language