/ Thesaurus / T Synonyms of thermic fever Find synonyms for: Noun1. sunstroke, insolation, thermic fever, siriasis, heatstroke, heat hyperpyrexiausage: sudden prostration due to exposure to the sun or excessive heatWordNet 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