How to say good in Japanese: いい, 良い and when to use which
"Good" in Japanese is いい (ii) in conversation and 良い (yoi) in writing: it's one word in two forms. As agreement "good, okay" — 分かりました (wakarimashita) or はい (hai). As praise "well done" — 上手 (jōzu) or よくできました (yoku dekimashita).
The Russian word "good" does three jobs: describes quality, expresses agreement, and praises. Japanese has divided them: いい for quality, 分かりました for agreement, 上手 for skill. You can use いい for agreement, but it will sound like "oh, alright then."
Three different "good"
| Japanese | Reading | Translation |
|---|---|---|
| いい | ii · ii | Good, fine (colloquial form) |
| 良い | yoi · yoi | Good (written and more formal form) |
| 分かりました | wakarimashita · wakarimashita | Okay, understood (agreement with a request) |
| 上手 | jōzu · jōzu | Skillful, good at |
| よくできました | yoku dekimashita · yoku dekimashita | Well done, good job |
| 大丈夫 | daijōbu · daijōbu | It's fine, it's okay |
| いいですね | ii desu ne · ii desu ne | Good, sounds nice |
Why いい and 良い are the same word
良い (yoi) is the original form, いい is its colloquial contraction. In speech, people almost always say いい, while in documents and books they write 良い. But in polite forms, yoi returns: 良かったです (yokatta desu) — "it was good," not "iikatta."
How to respond "good" in different situations
| Situation | What to say | Reading |
|---|---|---|
| Someone asks you to do something | 分かりました | wakarimashita |
| You like the suggestion | いいですね | ii desu ne |
| They offer help, but you don't need it | 大丈夫です | daijōbu desu |
| Praising someone's work | よくできました | yoku dekimashita |
| Praising a skill | 上手ですね | jōzu desu ne |
| "It all went well" | 良かったです | yokatta desu |
The trap with いいです
いいです can mean both "yes, good" and "no, thanks" — depending on intonation and context. If someone asks "shall I pack it?" and you reply いいです, it will likely be taken as a refusal. If you want to agree, it's safer to say お願いします ("yes, please").
Say the variants out loud
"Daijōbu" — long "o" in the middle, final "u" is devoiced.
FAQ
- How do you say "good" in Japanese?
- いい (ii) in conversation, 良い (yoi) in writing. As agreement — 分かりました (wakarimashita), as praise — よくできました or 上手 (jōzu).
- What's the difference between いい and 良い?
- They are the same word: 良い is the original form, いい is the colloquial contraction. In the past tense, yoi returns: 良かった (yokatta).
- Is it true that "ii desu" can mean "no"?
- Yes, that's a common trap. In response to an offer of help, いいです is usually understood as a polite refusal. For agreement, it's safer to use お願いします.
- How do you praise someone in Japanese?
- よくできました (yoku dekimashita) — "well done," 上手ですね (jōzu desu ne) — "skillful," すごいですね (sugoi desu ne) — "amazing."
Updated: 2026-07-25