/ Thesaurus / I Synonyms of ipomoea nil Find synonyms for: Noun1. Japanese morning glory, Ipomoea nil, morning gloryusage: annual Old World tropical climbing herb distinguished by wide color range and frilled or double 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