also: しつがよい
質がいい · i-adjective (yoi/ii class)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 質がいい | 質がよくない |
| Polite | 質がいいです | 質がよくないですalso 質がよくありません |
| Past polite | 質がよかったです | 質がよくなかったですalso 質がよくありませんでした |
| Past | 質がよかった | 質がよくなかった |
| Te-form | 質がよくて | 質がよくなくて |
| Adverbial | 質がよく | |
| Conditional | 質がよければ | 質がよくなければ |
| Tara conditional | 質がよかったら | 質がよくなかったら |
expression, i-adjective (yoi/ii class)
good quality; high-quality; superior
Describes something of high quality or superior standard. Often used attributively (e.g., 質がいい製品) or predicatively. The antonym is 質が悪い.
Antonyms: 質が悪い
All the products in this shop are of good quality.
Because it uses high-quality materials, it lasts a long time.
poor-quality; low-quality; shoddy
Standard kanji-kana mixed spelling with the colloquial いい ending.
More formal or written variant using 良い; can also be read しつがいい, but しつがよい is the primary reading for this form.
Kana-ending variant with the formal よい; less common than 質がいい in everyday speech.
Compound of 質 (しつ, 'quality') + が (subject marker) + いい/よい ('good'). A straightforward phrasal adjective.