/ Thesaurus / B Synonyms of bastard indigo Find synonyms for: Noun1. bastard indigo, Tephrosia purpurea, hoary peausage: East Indian shrub2. false indigo, bastard indigo, Amorpha fruticosa, amorphausage: dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowers3. false indigo, bastard indigo, Amorpha californica, amorphausage: an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language