refulgent

refulgent \rih-FUL-juhnt\, adjective:

Shining brightly; radiant; brilliant; resplendent.

If Moore was not quite a burned-out case, his once refulgent light flickered only dimly in his sad last years.
-- Martin Filler, "The Spirit of '76", New Republic, July 9, 2001

With its improbable towers tilting against themselves and its titanium sheathing in full refulgent glow, it brings on a question that the world has not enjoyed asking itself since the first moon landings: If this is possible, what isn't?
-- Richard Lacayo, "The Frank Gehry Experience", Time, June 26, 2000

To the Renaissance, they [the Middle Ages] were nothing but a dank patch of history, a barren stretch of time between luminous antiquity and an equally refulgent present.
-- Justin Davidson, "On the Record", Newsday, January 19, 1997

Refulgent comes from the present participle of Latin refulgere, "to flash back, to shine brightly," from re-, "back" + fulgere, "to shine."