What sumimasen really means (すみません)

Sumimasen (すみません) is Japanese for “excuse me”, “I’m sorry” and, surprisingly often, “thank you”. It’s the polite negative of 済む (sumu), to come to an end or to be settled, so word for word it says “it isn’t settled”: the trouble I’ve caused you, or the kindness you’ve shown me, hasn’t been squared away. You’ll hear it all day in Japan, from calling a waiter to squeezing off a crowded train.

What the kanji says

済 (sai, or sumu) means to finish, or to settle a matter. The 氵 on its left is water, and 斉 on the right gives the sound. In ancient Chinese the character meant to cross a river, and also to help someone across, to relieve. That older sense survives in 救済 (kyuusai), relief, and in 経済 (keizai), the economy, short for 経世済民 (keisei saimin), governing the world and relieving the people.

In Japanese, 済 became the kanji for 済む: a job, a payment or a worry comes to an end and is done with. Add 済み (zumi) to a word and it means “already done”: 支払い済み (shiharaizumi) is paid, and 予約済み (yoyakuzumi) is reserved.

Why “not settled” means sorry and thank you

The grammar is simple: 済み, from 済む, plus polite ませ and the negative ん. The real question is what isn’t settled.

The usual short explanation is a debt: someone did something for you, and you can never fully pay it back. That’s a good way to picture it, and 済む really can mean that a debt has been paid off. But the oldest examples in Japanese dictionaries point to feelings rather than money. 済む also means to feel at peace, as in 気が済む (ki ga sumu), to be satisfied. The Nihon Kokugo Daijiten, Japan’s largest dictionary, gives an older meaning of すみません, with an example from 1800: “not satisfied in your feelings, not reconciled to something”. Its example of the sorry-and-thank-you meaning comes from the late 1800s.

So an apology says: what I did to you weighs on me. A thank-you says: what you did for me weighs on me too. Both are the same unsettled feeling. Another dictionary, the Daijisen, adds that 済む shares its origin with 澄む (sumu), for water to become clear, as a pond does once everything in it has settled.

How to use it

• すみません、お会計お願いします。

  Sumimasen, okaikei onegai shimasu.

  Excuse me, could we have the bill, please?

• 遅れてすみません。

  Okurete sumimasen.

  Sorry I'm late.

• わざわざすみません。

  Wazawaza sumimasen.

  Thank you for going to all that trouble.

• すみません、降ります。

  Sumimasen, orimasu.

  Excuse me, this is my stop. (on a crowded train)

• 本当にすみませんでした。

  Hontou ni sumimasen deshita.

  I'm really sorry. (for something you did)

A few things worth knowing:

• One word, three jobs. Before a request it means “excuse me”, after a mistake “I’m sorry”, and after a favour “thank you”, with a touch of “sorry for the trouble”.
• It’s how you call staff. In a restaurant or a shop, a clear すみません and a raised hand are all you need.
• すいません (suimasen) is a common relaxed pronunciation. It’s fine in speech, but in writing and careful speech use すみません.
• For a real apology, go stronger. At work, or when you’ve really messed up, 申し訳ありません (moushiwake arimasen) carries more weight. With friends, ごめん (gomen) or ごめんなさい (gomen nasai) sounds warmer.
• When you’re simply pleased, ありがとう (arigatou) says it better. すみません always carries a little “sorry for the trouble”.

Words with the same kanji

Remember it

Picture a pond (氵) stirred up by something that happened between you and another person. Until the water settles (済), all you can say is すみません.

The kanji in this lesson

Tap Draw it to watch the stroke order. Numbers show where each stroke starts.

Draw it

Sources

• Kotobank (Nihon Kokugo Daijiten): 済みません
• Weblio (Daijisen): 済む
• Wiktionary via Kaikki: 濟 (glyph origin)

Written by the Sumi team with the help of AI, then checked against JMdict and KANJIDIC2. How we write lessons. Spotted a mistake? Email brightsmilesolutionssupport@gmail.com.