笑い事じゃない

it's no laughing matter

→ 笑い事

phrase Rare #34,522

it's no laughing matter Used to say that something is serious and should not be treated as a joke.

JA: この問題は笑い事じゃない。

EN: This problem is no laughing matter.

This isn’t funny!

This isn't something to laugh about.

— ANORA アノーラ (2024)

I don't think that's something to laugh about.

This isn’t a laughing matter.

This is no laughing matter.