radiant

Synonyms

beaming, bedazzling, bright, brilliant, candescent, clear, dazzling, effulgent, fulgent, glowing, incandescent, lambent, lucent, lucid, luminous, lustrous, refulgent, sheeny, shining, shiny, splendid;

Antonyms

dim, dull, lackluster, unbright, unbrilliant;

Near 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, palish;

Related Words

ablaze, ardent, blazing, burning, combusting, fiery, flaming, red-hot;

agleam, aglitter, blinding, coruscant, flaring, flashing, flickering, glancing, glaring, gleaming, glimmering, glinting, glistening, glistering, glittering, scintillant, scintillating, shimmering, shimmery, sparkling, sunny, twinkling, winking;

burnished, polished, shined;

superbright, ultrabright;