- emitting rays of light; shining; bright: the radiant sun; radiant colors.
- bright with joy, hope, etc.: radiant smiles; a radiant future.
- Physics. emitted or propagated by radiation.
- noting a partition line having a series of flamelike indentations formed by ogees joined in zigzags; rayonny.
- (of a charge, as an ordinary) having an edge or edges so formed.
Origin of radiant
SynonymsSee more synonyms for on Thesaurus.com
Examples from the Web for radiant
John Paul was youthful in his sixties with a radiant charisma.How Pope Francis Became the World’s BFF
December 21, 2014
Bulbs strung among branches in the overhead wild hibiscus tree form a radiant canopy.A Magical Meal at Louie’s Backyard in the Conch Republic
Jane & Michael Stern
July 13, 2014
He taught her how to die by slow example, and she was radiant with the privilege.The Day the Fairytale Died
July 12, 2014
McDonald is a radiant talent, with a warm voice and beaming smile that light up any venue in which she appears.Audra for the Win: Why Audra McDonald Must Win Tony for Best Actress
June 7, 2014
And so again and again he pitted his own radiant confidence against some equal and opposite force.How Tom Cruise Can Get His Groove Back
June 5, 2014
He looked upward with a radiant expression, and feebly pressed her hand.Philothea
Lydia Maria Child
Gilder sprang to his feet, his face suddenly grown younger, radiant.Within the Law
She was obliged to go, and to appear all radiant with pleasure.Tales And Novels, Volume 5 (of 10)
To the widow of Mr Verloc the robust anarchist was like a radiant messenger of life.The Secret Agent
There is a radiant picture of this morning ride still fresh in my memory.In the Valley
- sending out rays of light; bright; shining
- characterized by health, intense joy, happiness, etca radiant countenance
- emitted or propagated by or as radiation; radiatedradiant heat
- sending out heat by radiationa radiant heater
- physics (of a physical quantity in photometry) evaluated by absolute energy measurementsradiant flux; radiant efficiency Compare luminous
- a point or object that emits radiation, esp the part of a heater that gives out heat
- astronomy the point in space from which a meteor shower appears to emanate
Word Origin and History for radiant
mid-15c., from Middle French radiant and directly from Latin radiantem (nominative radians) "beaming, shining," present participle of radiare "to beam, shine" (see radiation). Of beauty, etc., first attested c.1500. Related: Radiantly.
"point or object from which light radiates," 1727; see radiant (adj.). In astronomy, of meteor showers, from 1864.
- Emitting heat or light.
- Consisting of or emitted as radiation.
- A point from which light radiates to the eye.
- Transmitting light, heat, or other radiation. Stars, for example, are radiant bodies.
- Consisting of or transmitted as radiation.
- The apparent celestial origin of a meteor shower. For example, a point in the constellation Gemini is the radiant of the Geminid meteor shower.