/ Thesaurus / S Synonyms of solar flare Find synonyms for: Noun1. solar flare, flare, solar radiationusage: a sudden eruption of intense high-energy radiation from the sun's surface; associated with sunspots and radio interferenceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language