adjective ra·di·ant \ˈrā-dē-ənt\

: having or showing an attractive quality of happiness, love, health, etc.

: bright and shining

: sent out from something in rays or waves that you cannot see

Full Definition of RADIANT

a :  radiating rays or reflecting beams of light
b :  vividly bright and shining :  glowing
:  marked by or expressive of love, confidence, or happiness <a radiant smile>
a :  emitted or transmitted by radiation
b :  emitting or relating to radiant heat
ra·di·ant·ly adverb

Examples of RADIANT

  1. She had a radiant inner glow.
  2. She looked radiant at her wedding.

First Known Use of RADIANT

15th century

Synonym Discussion of RADIANT

bright, brilliant, radiant, luminous, lustrous mean shining or glowing with light. bright implies emitting or reflecting a high degree of light. brilliant implies intense often sparkling brightness. radiant stresses the emission or seeming emission of rays of light. luminous implies emission of steady, suffused, glowing light by reflection or in surrounding darkness. lustrous stresses an even, rich light from a surface that reflects brightly without glittering.

Rhymes with RADIANT



Definition of RADIANT

:  something that radiates: as
a :  a point in the heavens at which the visible paths of meteors appear to meet when traced backward
b :  the part of a gas or electric heater that becomes incandescent

First Known Use of RADIANT

circa 1741
RADIANT Defined for Kids


adjective ra·di·ant \ˈrā-dē-ənt\

Definition of RADIANT for Kids

:  giving out or reflecting rays of light <the radiant sun>
:  glowing with love, confidence, or joy <a radiant smile>
:  transmitted by radiation
Medical Dictionary


adjective ra·di·ant \ˈrād-ē-ənt\

Medical Definition of RADIANT

:  emitted or transmitted by radiation
:  emitting or relating to radiant heat
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