Breadcrumb Home > Thesaurus > W Synonyms of white mullein Find synonyms for: Noun1. white mullein, Verbascum lychnitis, mullein, flannel leaf, velvet plantusage: densely hairy Eurasian herb with racemose white flowers; naturalized in North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language