radiant
gb/ɹˈeɪdiənt/ us/ɹˈeɪdiənt/
B1
英語
~ 5000
語義
0件の語義
adjective
B1
property
1
emitting bright light or heat
Giving out bright light or heat.
用法パターン：
[something] is radiant
よくある間違い：
Learners sometimes confuse 'radiant' with 'radioactive'; 'radiant' refers to light or heat, not radiation hazards.
類義語
luminous (Suggests steady, glowing light, often softer than 'radiant'.)
|
brilliant (Implies intense brightness, sometimes dazzling.)
対義語
dim (Lacking brightness or intensity of light.)
|
dull (Not bright, shining, or vivid.)
コロケーション
radiant light
|radiant heat
|radiant energy
|radiant sun
テーマ
science
|nature
|daily life
例文
- The radiant sun warmed the beach.
- Her face was lit by the radiant glow of the campfire.
- The lamp emitted a radiant beam across the room.
- Radiant heat filled the small cabin.
- The diamond sparkled with radiant brilliance.
学習者向け例文
- The sun is radiant in the morning.
- A fire is radiant at night.
- The lamp is radiant in the dark.
- The heater gives radiant warmth.
adjective
B1
property
2
looking very happy and healthy
Looking very happy and healthy.
用法パターン：
[someone] is radiant
よくある間違い：
Some learners think 'radiant' here means 'bright in color', but it refers to expression and appearance.
類義語
beaming (Suggests a broad, joyful smile or expression.)
|
glowing (Often implies health, happiness, or satisfaction visible on the face.)
対義語
gloomy (Looking unhappy or depressed.)
|
haggard (Looking tired and unhealthy.)
コロケーション
radiant smile
|radiant bride
|radiant face
テーマ
emotions
|daily life
|health
例文
- She looked radiant on her wedding day.
- His radiant smile lit up the room.
- After the good news, she was positively radiant.
- The child was radiant with excitement.
- He appeared radiant after his recovery.
学習者向け例文
- She is radiant with joy.
- The bride is radiant.
- He is radiant after the win.
- Her face is radiant today.
adjective
technical
B2
property
3
related to radiation energy transfer
About energy moving as waves or rays, not by touch or movement of air.
類義語
emissive (Technical term for emitting radiation or light.)
対義語
conductive (Refers to energy transfer by direct contact, not radiation.)
コロケーション
radiant energy
|radiant flux
|radiant emission
テーマ
science
|physics
例文
- Radiant heat travels through space without heating the air first.
- Solar panels capture radiant energy from sunlight.
- Radiant transfer is important in thermal engineering.
学習者向け例文
- The sun sends radiant energy to Earth.
- A fire gives radiant heat.
- Radiant heat moves without air.
文法
表現
radiant smile
1/ɹˈeɪdiənt smˈaɪl/
fixed phrase
very bright and happy smile
A big, happy smile that seems full of light.
例文
- His radiant smile made everyone feel welcome.
- She greeted us with a radiant smile.
radiant with joy
1/ɹˈeɪdiənt wˈɪθ d͡ʒˈɔɪ/
fixed phrase
looking very happy because of joy
Looking very happy because something good happened.
例文
- She was radiant with joy after hearing the news.
- The parents were radiant with joy at their child's success.