adj · noun · 11 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ˈɹeɪ.di.ənt/
Southern-England:Recorded audio is listed in the source snapshot.
CMU ARPABET:R EY1 D IY2 AH0 N T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:R EY1 D Y AH0 N T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Radiating light and/or heat.
Definition source: English Wiktionary via Wiktextract
Examples
the radiant sun
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Emitted as radiation.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adj
Meaning 3
Beaming with vivacity and happiness.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
Examples
a radiant face
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
adj
Meaning 4
Strikingly beautiful.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
adj
Meaning 5
Emitting or proceeding as if from a center.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
adj
Meaning 6
Giving off rays.
Definition source: English Wiktionary via Wiktextract
Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.
Definition source: English Wiktionary via Wiktextract
Topics: biology, botany, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
noun
Meaning 8
A point source from which radiation is emitted.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
noun
Meaning 9
The apparent origin, in the night sky, of a meteor shower.
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
10
noun
Meaning 10
A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
Definition source: English Wiktionary via Wiktextract
Topics: geometry, mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
11
adjective satellite
Meaning 11
radiating or as if radiating light
Definition source: Princeton WordNet 3.0
Examples
the beaming sun
the effulgent daffodils
a radiant sunrise
a refulgent sunset
Meaning relationships
Synonyms: beaming, beamy, effulgent, refulgent
Antonyms: none provided
History
Etymology
From Middle English radyant, from Latin radiāns, radiantis, present participle of radiāre (“to emit rays or beams”).
Across languages
Translations
65 source translations are retained for this English entry.