が悪くて

be in a bad condition; be poor in quality

→ が
phrase Uncommon #18,859
be in a bad condition; be poor in quality Follows a noun to describe an undesirable state or quality. The て-form often links to what follows or gives a reason.
JA: 今夜は調子が悪くてね。
EN: I’m not feeling well tonight.

何しろあの辺は水の便が悪くて冗談じゃない

The thing is, the water supply around there is terrible—it’s no joke.

— 生きる (1952)

天候が悪くて彼は来られなかった。

He couldn't come because of the bad weather.

あの教授いつも機嫌が悪くて

That professor is always in a bad mood.

— キャッチ・ミー・イフ・ユー・キャン (2002)

「近頃どうも調子が悪くてね」「一度診てもらった方がいいよ」

“I haven’t been feeling well lately.” “You should get yourself checked out.”

具合が悪くて、あのパーティーには出席できなかったんです。

I wasn't feeling well, so I couldn't attend that party.

今夜は調子が悪くてね

I'm not feeling well tonight.

— パディントン2 (2017)

道が悪くてバスがガタガタ揺れた。

The bus jolted and shook along the rough road.

天候が悪くて私は釣りに行けなかった。

The bad weather kept me from going fishing.

昨日は体調が悪くて学校に行けなかった。

I wasn't feeling well yesterday, so I couldn't go to school.

“愛想が悪くてご免よ”

Sorry I’m so unfriendly.

— ラブ・アクチュアリー (2003)

彼女は具合が悪くて来ることができなかった。

She couldn't come because she wasn't feeling well.

彼口が悪くていや

I don't like him because he's so rude.

— Good Luck, Have Fun, Don't Die (2026)