/ Thesaurus / L Synonyms of luminous energy Find synonyms for: Noun1. luminous energy, radiant energyusage: the energy associated with visible lightWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language