ani vs aniyo
Ani vs Aniyo: Casual vs Polite 'No' in Korean — What's the Difference?
아니
ani · ani
아니요
aniyo · aniyo
Quick answer
Ani (아니) is the casual 'no' used with close friends and people your own age or younger, while aniyo (아니요) adds the polite ending -yo and is appropriate for most situations including strangers and seniors.
Comparison table
| Aspect | ani | aniyo |
|---|---|---|
| Meaning | No / Nope (casual) | No (polite) |
| Formality | Casual — friends, family, those younger than you | Polite — strangers, elders, service contexts |
| Safe with strangers? | Can sound abrupt or rude to unfamiliar people | Always appropriate |
| As 'that's not right' | 아니, 그게 아니야 (ani, geuge aniya) — casual correction | 아니요, 그게 아니에요 (aniyo, geuge anieyo) — polite correction |
| K-drama context | Friends arguing, lovers bickering, siblings | Formal denials, speaking to seniors or authority figures |
ani examples
아니, 그거 내 거야!
Ani, geugeo nae geoya!
No, that's mine!
아니, 진짜?
Ani, jinjja?
No way, for real?
aniyo examples
아니요, 괜찮습니다.
Aniyo, gwaenchanseumnida.
No, I'm fine, thank you.
아니요, 저는 모르겠는데요.
Aniyo, jeoneun moreugenneunedeyo.
No, I'm not sure about that.
Which one should you use?
Default to aniyo when in doubt — it's never wrong. Use ani freely among friends your own age or with people younger than you. If you're just starting to learn Korean and traveling, aniyo is the one to memorize first.
FAQ
Is there an even more formal 'no' than aniyo?
아닙니다 (animnida) is the most formal form — you'll hear it in formal speeches, military contexts, and professional announcements.
Can ani be used as a filler, like 'wait, no'?
Yes — Koreans often use '아니' at the start of a sentence to mean 'wait' or 'actually no' before correcting themselves or redirecting. It's like 'well, no' in English.
What's the casual 'nah'?
아니 (ani) covers it, and sometimes just '응, 아니' (eung, ani — like 'hmm, nah') in very casual speech.