radiant Copy link Outline 1. rădians (diffusing rays2. clārus3. nĭtĭdus (poet.) • radiant: 1. rădians (diffusing rays: poet.): the r. light of the sun, radiantia lumina solis, Ov. Trist. 2, 325: r. visage (Milton), *radiantia ora. 2. clārus: the r. lights of the world (sun and moon), clarissima mundi lumina, Virg. G. 1, 5. 3. nĭtĭdus (poet.): the bright sun had hidden his r. head in the ocean, candidus oceano n. caput abdiderat sol, Ov. M. 15, 30. So, fulgĭdus, fulgens, splendĭdus, etc.: v. bright. To be r., rădio, 1: Virg.: Ov.