REFULGENT
adjective
Brightly shining, glowing radiantly
From brightening fields of ether fair-disclosed,
Child of the Sun, refulgent Summer comes…
— James Thomson, The Seasons, Summer (1727)

Refulgent

Brightly shining, glowing radiantly

Examples:

“Celestial choir! enthron’d in realms of light,
Columbia’s scenes of glorious toils I write.
While freedom’s cause her anxious breast alarms,
She flashes dreadful in refulgent arms.”
— Phillis Wheatley, letter to George Washington (1775)

“God is more to me than a grand and solitary Being,
though refulgent with infinite perfections.”
— Horace Mann, Congressional speech (1849)

“From brightening fields of ether fair-disclosed,
Child of the Sun, refulgent Summer comes”
— James Thomson, The Seasons, Summer (1727)

Etymology:

Refulgent comes from the Latin word for “flashing”, fulgere.