済まない (Sumanai) is a Japanese i-adjective meaning “inexcusable, unjustifiable, unpardonable, sorry”.
Meanings
- i-adjectiveinexcusable; unjustifiable; unpardonable
- i-adjectivesorry; remorseful; apologetic; conscience-stricken; contrite
- interjectionexcuse me; (I'm) sorry; thank you
Examples
待たせてすまなかったな。
I am sorry to have kept you waiting.
彼女に対してすまない気がします。
I feel sorry for her.
すまないが今僕、手がいっぱいなのだ。
Excuse me, but I'm tied up now.
Sentences from Tatoeba (CC BY 2.0 FR).