頭あたまの足たりない

expression, i-adjective

dim-witted; half-baked; meatheaded

Colloquial and mildly derogatory; used to describe someone who is not very smart or whose thinking is shallow. Often used in casual speech.

• あいつは頭あたまの足たりないやつだ。

  That guy is dim-witted.

• そんな頭あたまの足たりない計けい画かくはすぐに却きゃっ下かされた。

  Such a half-baked plan was immediately rejected.