From Longman Dictionary of Contemporary Englishef‧ful‧gent/ɪˈfʌldʒənt$ɪˈfʊl-/adjectiveliterarybeautifulandbright—effulgencenoun[uncountable]Examples from the Corpuseffulgent•Withoutiridescentblue eyeshadow, aneffulgentoutfitor a hair-sprayed coif, she looksnormal.Origineffulgent...
Effulgent comes from the Latin ex meaning "out" and fulgere meaning "to shine". A light that is effulgent, shines out or radiates. A personality that is effulgent radiates warmth and goodness. When you're in love, you have an effulgent or radiant look, as though sunlight were shining ...