무슨일이

what happened

→ 무슨일
phrase Rare #23,686
what happened Usually spaced as 무슨 일이. The unspaced form 무슨일이 is nonstandard but may appear informally in casual writing. It is commonly used to ask what occurred or what is going on.
KO: 무슨일이 있었나요?
EN: What happened?

무슨일이 있었을 거 야

Something must have happened.

무슨일이 있었구나?

What happened?

— 패왕별희 (1993)

무슨일이 있었나요?

What happened?

— 이탈자 (1990)