失敬

お先(さき)に失敬(しっけい)します。

Excuse me, I'll be taking my leave first.

それは失敬(しっけい)な言(い)い方(かた)だね。

That's a rude way to put it.

遅刻(ちこく)してしまって失敬(しっけい)しました。

I'm sorry for being late — that was rude of me.

人(ひと)の話(はなし)を遮(さえぎ)るのは失敬(しっけい)な行為(こうい)だと思(おも)う。

I think interrupting someone while they're talking is a discourteous thing to do.

「やあ、失敬(しっけい)、失敬(しっけい)。」と彼(かれ)は笑(わら)って謝(あやま)った。

"Oops, my bad," he said with a laugh, apologizing.