/ Thesaurus / L Synonyms of longheaded thimbleweed Find synonyms for: Noun1. longheaded thimbleweed, Anemone riparia, thimbleweed, Anemone cylindricausage: thimbleweed of northern North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: magnanimous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language