/ Thesaurus / E Synonyms of evening primrose Find synonyms for: Noun1. evening primrose, herb, herbaceous plantusage: any of several plants of the family OnagraceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language