輝かす・耀かす・赫かす|かがやかすkagayakasu[4]nakadaka (mid-high)
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Which spelling to use
輝かす輝かす（かがやかす） is the most common written form and the form beginners should use; it is written with kanji and kana.
耀かす耀かす（かがやかす） is a rarely used written form, also written with kanji and kana; treat it as a variant rather than your default choice.
赫かす赫かす（かがやかす） is a rarely used written form, also written with kanji and kana; treat it as a variant rather than your default choice.
Definitions
- godan verb, transitive verbto light up; to brighten
Conjugation
| Dictionary form | 輝かす（かがやかす） |
|---|---|
| Polite (masu) | 輝かします（かがやかします） |
| Negative (nai) | 輝かさない（かがやかさない） |
| polite (masen) | 輝かしません（かがやかしません） |
| classical zu / nu | 輝かさず・輝かさぬ（かがやかさず・かがやかさぬ） |
| Past (ta) | 輝かした（かがやかした） |
| polite (mashita) | 輝かしました（かがやかしました） |
| Past negative (nakatta) | 輝かさなかった（かがやかさなかった） |
| polite (masen deshita) | 輝かしませんでした（かがやかしませんでした） |
| Te form | 輝かして（かがやかして） |
| Potential | 輝かせる（かがやかせる） |
| Passive | 輝かされる（かがやかされる） |
| Causative | 輝かさせる（かがやかさせる） |
| Causative passive | 輝かさせられる（かがやかさせられる） |
| Conditional (ba) | 輝かせば（かがやかせば） |
| tara | 輝かしたら（かがやかしたら） |
| Volitional | 輝かそう（かがやかそう） |
| polite (mashou) | 輝かしましょう（かがやかしましょう） |
| Imperative | 輝かせ（かがやかせ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Transitive / intransitive pair
星が輝く
笑顔が顔を輝かす
輝く describes something that shines on its own (星が輝く), while 輝かす means to make something shine, as when a smile lights up a face (笑顔が顔を輝かす).
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Synonyms & antonyms
- Related照らすてらすNeutralEveryday word for shining light on something; also to compare or refer to. 「輝かす」 makes the object itself gleam, as in 「目を輝かす」.
- Related照射しょうしゃWrittenWritten/formal term for light or rays striking something, mostly in medicine and science, as in 「放射線照射」; 「輝かす」 makes eyes or gems glitter.
- Related照らし出すてらしだすNeutralLights up a dark place so the object stands out, as in 「ライトで照らし出す」; 「輝かす」 instead makes eyes or a face sparkle.
- Antonym曇らすくもらすNeutralAntonym: makes an expression or glass dark and lusterless, as in 「顔を曇らす」 — the opposite of making something shine.
- Antonym暗くするNeutralEveryday phrase for making something dark, such as a light or a room; the opposite of 「輝かす」 making things sparkle.
Use 「輝かす」 for eyes or a face lighting up with joy or expectation, as in 「目を輝かす」. For shining a light on things, use 「照らす」 or 「照らし出す」; for rays striking something, 「照射」. Antonyms: 「曇らす」 dulls, 「暗くする」 darkens.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
