radiant

1 having or being an outward sign of good feelings (as of love, confidence, or happiness) <she left the interview with a radiant smile on her face, confident she had gotten the job> <a radiant bride> Synonyms aglow, beaming, bright, glowing, sunny Related Words brilliant, dazzling, effulgent, gleaming, luminous, refulgent, shining, starry; blithe, blithesome, bright, cheerful, cheery, chipper, gay, gladsome, lightsome, merry, mirthful, optimistic, upbeat; jocund, jovial, laughing, smiling; blooming, rosy; blissful, chuffed [British], delighted, gratified, happy, joyful, joyous, pleased, satisfied, thankful, tickled Near Antonyms blank, flat, listless, stoic (or stoical), unemotional; black, dark, darkening, depressing, dismal, gloomy, glum, gray (also grey), melancholy, sullen; frowning, glaring, glowering, lowering (also louring), scowling

2 giving off or reflecting much light <from the plane we could see the statehouse's radiant gold dome> Synonyms beaming, bedazzling, brilliant, candescent, clear, dazzling, effulgent, fulgent, glowing, incandescent, lambent, lucent, lucid, luminous, lustrous, bright, refulgent, sheeny, shining, shiny, splendidRelated Words ablaze, ardent, blazing, burning, combusting, fiery, flaming, red-hot; agleam, aglitter, blinding, coruscant, flaring, flashing, flickering, gemmy, glancing, glaring, gleaming, glimmering, glinting, glistening, glistering, glittering, scintillant, scintillating, shimmering, shimmery, sparkling, sunny, twinkling, winking; burnished, polished, shined; superbright, ultrabrightNear Antonyms blackened, dark, darkened, darkish, darkling, darksome, dimmed, dusky, gloomy, lightless, murky, obscure, obscured, pitch-black, pitch-dark, somber (or sombre), sunless, tenebrous, unlit; cloudy, shadowlike, shadowy, shady; gray (also grey), leaden, pale, palishAntonyms dim, dull, lackluster, unbright, unbrilliant