英和和英

語源

From 中期英語 radyant, from Latin radiāns, radiantis, present participle of radiāre (“to emit rays or beams”).

発音

• IPA: /ˈɹeɪ.di.ənt/

形容詞

radiant (comparative more radiant, superlative most radiant)

1. Radiating light and/or heat.

   the radiant sun

   • 1791, Homer, “[The Iliad.] Book III.”, in W[illiam] Cowper, transl., The Iliad and Odyssey of Homer, Translated into Blank Verse, […], volume I, London: […] J[oseph] Johnson, […], →OCLC, page 79:

     They in ranks / Sat all, where ſtood the fiery ſteeds of each, / And where his radiant arms lay on the field.

   • 2026 May, Julie Belcove, “Farm Fresh”, in Architectural Digest, volume 83, number 4, page 93:

     The couple's sustainability efforts also included installing radiant heat under the concrete-slab floor.

2. Emitted as radiation.
3. (figurative) Beaming with vivacity and happiness.

   a radiant face

   • 1907 August, Robert W[illiam] Chambers, chapter I, in The Younger Set, New York, N.Y.: D. Appleton & Company, →OCLC:

     His sister, Mrs. Gerard, stood there in carriage gown and sables, radiant with surprise. ¶ “Phil ! You ! Exactly like you, Philip, to come strolling in from the antipodes—dear fellow !” recovering from the fraternal embrace and holding both lapels of his coat in her gloved hands.

   • 1961 November 10, Joseph Heller, “The Soldier in White”, in Catch-22 […], New York, N.Y.: Simon and Schuster, →OCLC, page 171:

     Nurse Cramer had a cute nose and a radiant, blooming complexion dotted with fetching sprays of adorable freckles that Yossarian detested.

4. (figurative) Strikingly beautiful.
   • 1893, E. Werner, Clear the Track!, page 94:

     And yet she was ensnaringly beautiful, despite her pride and self-consciousness; radiant and certain of conquest she stood before the man who alone seemed to have neither eye nor ear for charms that had never elsewhere played her false.

5. Emitting or proceeding as if from a center.
6. (heraldry, of a bearing) Giving off rays.

   the sun radiant

   a crown radiant

7. (botany) Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.

派生語

名詞

radiant (plural radiants)

1. A point source from which radiation is emitted.
2. (astronomy) The apparent origin, in the night sky, of a meteor shower.
3. (geometry) A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

アナグラム

• anti-rad, antirad, intrada, itardan