How to say “I don’t want” in Japanese language

In Japanese, “I don’t want” can be said in a few different ways depending on how polite or casual you want to sound. Here are the most common and natural options 👇

Casual (with friends / informal)

• いらない (Iranai)
→ “I don’t want it / I don’t need it”
Very common and natural in daily conversation.

Example:
👉 それ、いらない。
(Sore, iranai.) – I don’t want that.
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Polite (safe for most situations)

• いりません (Irimasen)
→ Polite way to say “I don’t want it”
Example:
👉 これはいりません。
(Kore wa irimasen.) – I don’t want this.
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Very Polite / Formal (shops, office, customers)

• 結構です (Kekkō desu)
→ “No, thank you” / “I’m fine”
⚠️ This can sometimes sound ambiguous (can mean yes or no), so tone matters.

Example:
👉 大丈夫です、結構です。
(Daijōbu desu, kekkō desu.) – No thank you, I’m fine.
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Strong / Clear refusal (still polite)
• 必要ありません (Hitsuyō arimasen)
→ “It’s not necessary / I don’t need it”
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Extra polite (very respectful)
• 今回は遠慮します (Konkai wa enryo shimasu)
→ “I’ll pass this time” (soft and polite)
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Quick Summary
Situation Japanese
Casual いらない
Polite いりません
Shop / Formal 結構です
Soft refusal 遠慮します