既婚(きこん)marriage, married

既婚(きこん)の人(ひと)に手(て)を出(だ)してはいけない。

You shouldn't get involved with someone who's already married.

あの同僚(どうりょう)はもう未婚(みこん)ではなく、既婚(きこん)であるそうだ。

I guess that colleague isn't single anymore. They're married now.

既婚(きこん)している人(ひと)との交際(こうさい)は、浮気(うわき)ではなくて不倫(ふりん)と言(い)います。

Dating someone who's married isn't called cheating; it's called an affair.

あんなに好意(こうい)を伝(つた)えてくれた人(ひと)が既婚(きこん)だったとは想像(そうぞう)だにしなかった…。

I never imagined that the person who showed me so much affection was actually married…

友人(ゆうじん)：「もうあなた既婚(きこん)なんだから、そんな思(おも)わせぶりな態度(たいど)しちゃダメよ。」

Friend: 'You’re married now. You can't be acting so flirtatiously.'