also: ちょうどよい
ちょうどいい · i-adjective (yoi/ii class)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | ちょうどいい | ちょうどよくない |
| Polite | ちょうどいいです | ちょうどよくないですalso ちょうどよくありません |
| Past polite | ちょうどよかったです | ちょうどよくなかったですalso ちょうどよくありませんでした |
| Past | ちょうどよかった | ちょうどよくなかった |
| Te-form | ちょうどよくて | ちょうどよくなくて |
| Adverbial | ちょうどよく | |
| Conditional | ちょうどよければ | ちょうどよくなければ |
| Tara conditional | ちょうどよかったら | ちょうどよくなかったら |
expression, i-adjective (yoi/ii class)
just right; perfect (fit, timing, amount)
Used when something is exactly as desired in terms of size, time, quantity, or condition. Often appears in casual conversation.
この靴はサイズがちょうどいい。
These shoes are just the right size.
Now is the perfect time.
砂糖はこれくらいでちょうどいい？
Is this amount of sugar just right?
最適 is a formal word meaning 'optimal' or 'best suited', while ちょうどいい is casual and used in everyday conversation for something being just right.
ちょうどいい means 'just right' in terms of suitability or timing, while キリがいい specifically describes a neat, round, or convenient stopping point (e.g. in time or numbers).
丁度 is an adverb meaning 'exactly' or 'just' (used before a noun or verb), whereas ちょうどいい is an adjective phrase meaning 'just right'.
Kanji spelling using 良い; also read ちょうどよい.
Kana spelling with the よい reading; slightly more formal than ちょうどいい.
Kanji spelling using 丁度; less common than kana.
Full kanji spelling; also read ちょうどよい.
Full kanji spelling with the よい reading.
Combination of the adverb ちょうど (exactly) and the adjective いい (good). The phrase is a straightforward compound with no unusual historical derivation.