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Korean Slang · casual

미안해 (mianhae)

/mi.an.ɦɛ/verb (informal speech level)

"Sorry" in informal Korean — the casual way to apologize to friends, family, or close peers.

By Yijun Kim, Native Korean speaker and creator of Korean TokTokLast reviewed June 30, 2026
TL;DR · 미안해 (mianhae)
  • Meaning: "Sorry" in informal Korean — the casual way to apologize to friends, family, or close peers.
  • Pronunciation: /mi.an.ɦɛ/ (mianhae)
  • Part of speech: verb (informal speech level)
  • Formality: Casual — for friends, family, and close peers.
  • Literal: I am sorry / I feel apologetic

What does 미안해 mean?

Mianhae (미안해) is the casual way to say "sorry" in Korean — for friends, family, and close peers, and for small everyday mistakes. With strangers, elders, or anyone you address respectfully, switch to the formal 죄송합니다 (joesonghamnida).

미안해 (mianhae) is the informal "sorry" for everyday small mistakes among close people. It comes from 미안하다 (mianhada, "to be sorry / to feel apologetic"), with the -해 informal ending. The polite-informal version 미안해요 (mianhaeyo) adds 요. The formal version 죄송합니다 (joesonghamnida) is what you say to strangers, customers, bosses, or anyone you address respectfully. Korean apology grammar reflects social distance: minor mistakes between friends → 미안해, anything more serious or with someone above you → 죄송합니다. K-dramas use the choice between 미안 vs 죄송합니다 as a relationship signal — the moment a couple drops from formal to 미안해 marks intimacy.

Literal meaning
I am sorry / I feel apologetic
Origin
미안 (Sino-Korean 未安, "unease, regret") + 하다 (to do) + -해 casual ending.

Examples in context

Casual standalone "sorry"

For friends and partners; 미안 (clipped) is even more casual.

미안해.
Mianhae.
I'm sorry. (casual)
Apologizing to a friend or partner
진짜 미안해.
Jinjja mianhae.
I'm really sorry.
Emphasized casual
미안, 내가 잘못했어.
Mian, naega jalmotaesseo.
Sorry, it was my fault.
미안 = clipped casual

Apologizing for something specific

Attach the reason with -아/어서 ("sorry for ~ing").

늦어서 미안해.
Neujeoseo mianhae.
Sorry I'm late.
Specific apology
연락 못 해서 미안해.
Yeollak mot haeseo mianhae.
Sorry I didn't text.
Apologizing for going quiet
기다리게 해서 미안해.
Gidarige haeseo mianhae.
Sorry to keep you waiting.
Apologizing for a delay

The formal upgrade (죄송합니다)

With strangers, elders, or serious matters, switch verbs to 죄송하다 → 죄송합니다.

죄송합니다.
Joesonghamnida.
I apologize. (formal)
Formal alternative
늦어서 죄송합니다.
Neujeoseo joesonghamnida.
I'm sorry I'm late. (formal)
Apology to a senior
정말 죄송합니다.
Jeongmal joesonghamnida.
I'm truly sorry.
Emphasized formal apology

The most serious apology

For grave apologies Koreans escalate beyond 죄송합니다 to admitting fault outright.

제가 잘못했습니다.
Jega jalmotaetseumnida.
I was in the wrong.
Admitting fault formally
진심으로 사과드립니다.
Jinsimeuro sagwa-deurimnida.
I sincerely apologize.
Public / formal apology
다시는 이런 일 없도록 하겠습니다.
Dasineun ireon il eopdorok hagetseumnida.
I'll make sure it never happens again.
Apology + promise

Responding to an apology

To accept, Koreans say 괜찮아 (it's okay) or 아니야 (no worries).

괜찮아, 신경 쓰지 마.
Gwaenchana, singyeong sseuji ma.
It's okay, don't worry about it.
Accepting casually
아니야, 내가 더 미안해.
Aniya, naega deo mianhae.
No, I'm the one who's sorry.
Mutual apology
괜찮습니다.
Gwaenchanseumnida.
It's all right. (formal)
Formal acceptance

미안해in K-pop & K-drama

K-dramas: the register switch

Screenwriters use the move from formal 죄송합니다 to casual 미안해 the same way they use 오빠 or 반말 — to mark a relationship turning intimate. A character still saying 죄송합니다 is keeping distance; the first 미안해 signals the walls coming down.

The public-apology ritual

When Korean celebrities or companies apologize, they issue a formal 죄송합니다 — often a written 사과문 (apology statement) and a press conference with a deep bow (고개 숙여 사과). The depth of the bow and the formality of the wording are read closely as a measure of sincerity.

미안 vs 죄송 — calibrating distance

Korean social life apologizes readily, and the exact word does real work: 미안해 for a friend you bumped into, 죄송합니다 for a stranger or your boss, and full 잘못했습니다 when you are truly at fault. Picking the wrong rung — 미안해 to an elder — instantly sounds rude.

When to use 미안해

  • Apologizing to friends, family, romantic partners
  • Small everyday mistakes — being late, forgetting something
  • Texting close people
  • When tone is informal but you genuinely regret

When NOT to use 미안해

  • With strangers, customers, or anyone older / higher-ranked (use 죄송합니다)
  • Serious mistakes that require formal apology
  • Workplace contexts
  • Public/published apologies

미안해 vs. similar terms

The Korean "sorry" ladder — from casual to formal

RegisterExpressionRomanizationUse with
Casual미안해 / 미안mianhae / mianclose friends, younger people
Polite-casual미안해요mianhaeyoacquaintances, slightly senior
Formal죄송합니다joesonghamnidastrangers, work, elders
Most serious잘못했습니다 / 사과드립니다jalmotaetseumnida / sagwadeurimnidagrave or public apologies

Related terms

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Frequently asked questions

How do you say "sorry" in Korean?

The casual "sorry" is 미안해 (mianhae) — for friends and close people. The polite version is 미안해요 (mianhaeyo). The formal "I apologize" is 죄송합니다 (joesonghamnida) — for strangers, work, or serious situations. Use 죄송합니다 when in doubt.

What is the difference between 미안해 and 죄송합니다?

미안해 (mianhae) is informal — for friends, family, peers, small mistakes. 죄송합니다 (joesonghamnida) is formal — for strangers, customers, elders, bosses, or serious mistakes. They use different verb roots and signal completely different relationships.

Can I say 미안해 to a stranger?

No. 미안해 sounds rude or overly familiar to a stranger. Use 죄송합니다 instead. Saving 미안해 for people you address casually is one of the first politeness rules learners practice.

How is 미안해 pronounced?

미안해 is pronounced [mi.an.ɦɛ] — "mee-ahn-heh." Three syllables, all light. The final 해 rhymes with the English word "head" minus the D. Note: 미안 is sometimes shortened on its own as a quick informal "sorry."

What is the difference between 미안해 and 미안?

미안 is just 미안해 with the verb ending dropped — a quick, clipped "sorry" between close friends, like saying "my bad." 미안해 is the full casual form. Both are informal; 미안 is breezier and more offhand, so save it for people you are relaxed with.

How do you respond to 미안해?

To accept an apology casually, say 괜찮아 (gwaenchana, "it's okay") or 아니야 (aniya, "no worries"). In formal situations the reply is 괜찮습니다 (gwaenchanseumnida). Often Koreans soften it further with 신경 쓰지 마 ("don't worry about it").

More Korean slang?

Browse the full Korean Slang Dictionary or read the deep-dive: Korean Slang Ultimate Guide.