悪いのか

is it bad; whether it's bad

→ 悪い
phrase Uncommon #14,789
is it bad; whether it's bad 悪いのか can form a direct question meaning “is it bad?” or appear in an embedded question meaning “whether it's bad.” Depending on context, 悪い can also mean “at fault” or “wrong.”
JA: これで悪いのか?
EN: Is this bad?

だれが悪いのか

Who is to blame?

運転手たちはその事故でだれが悪いのかについて議論を始めた

The drivers began arguing about who was at fault for the accident.

すぐ部屋に来い耳が悪いのか

Come to my room right now! Are you deaf or something?!

— TAXi (1998)

ぼくが悪いのか

Is it my fault?

— 鏡 (1975)

友達の心配しちゃ悪いのか

What's wrong with worrying about my friend?!

— すずめの戸締まり (2022)

具合でも悪いのか

Are you feeling sick or something?

— Брат 2 (2000)

どうしたんだ具合でも悪いのか

What's wrong? Are you feeling sick or something?

— 紅の豚 (1992)

泣けばよいのか悪いのか

I don't know whether I should cry or not.

誰か気分でも悪いのか

Is someone feeling sick or something?