ぞんざい (zonzai) conjugation
rude, careless, slovenly
ぞんざい (ぞんざい, zonzai) is a na-adjective. Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | ぞんざいだ zonzaida | ぞんざいです zonzaidesu | The form you look up. Also the casual “is ~”. |
| Negative | ぞんざいじゃない zonzaijanai | ぞんざいじゃないです zonzaijanaidesu | “is not ~”. |
| Past | ぞんざいだった zonzaidatta | ぞんざいでした zonzaideshita | “was ~”. |
| Past negative | ぞんざいじゃなかった zonzaijanakatta | ぞんざいじゃなかったです zonzaijanakattadesu | “was not ~”. |
| Te-form | ぞんざいで zonzaide | — | Links to the next clause: “~ and …”. |
| Adverb | ぞんざいに zonzaini | — | Turns it into “~ly”, describing a verb. |
| Before a noun | ぞんざいな〜 zonzaina〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | ぞんざいなら zonzainara | — | “if it is ~”. |
| Conditional (~たら) | ぞんざいだったら zonzaidattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | ぞんざいになる zonzaininaru | ぞんざいになります zonzaininarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | ぞんざいすぎる zonzaisugiru | ぞんざいすぎます zonzaisugimasu | “too ~”. |
| Looks ~ (~そう) | ぞんざいそう zonzaisou | ぞんざいそうです zonzaisoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
See the full rules in the adjective conjugation guide.