Adjective > Radiant

Adjective – Radiant

1. sending out light; shining or glowing brightly.

“a bird with radiant green and red plumage”

shining, bright, illuminated, lit, lighted, brilliant, gleaming, glowing, ablaze, luminous, luminescent, lustrous, incandescent, glittering, sparkling, coruscating, dazzling, flashing, shimmering, glowy, irradiant, lucent, lambent, splendent, effulgent, refulgent

dark, dull

2. (of electromagnetic energy, especially heat) transmitted by radiation, rather than conduction or convection.
“plants convert the radiant energy of the sun into chemical energy”

a point or object from which light or heat radiates, especially a heating element in an electric or gas heater.
“I sat down by my hissing gas fire—one of the radiants was missing”