的まと外はずれ

na-adjective, noun which may take the genitive case particle 'no', noun

off the mark; off base; misdirected; irrelevant

Describes a remark, action, or idea that misses the intended point or is not pertinent to the matter at hand. Often used in criticism or self-deprecation.

• 彼かれの意い見けんは的まと外はずれだった。

  His opinion was off the mark.

• 的まと外はずれな質しつ問もんをしてしまった。

  I ended up asking an irrelevant question.