一いっ切さい気きにならない

expression, i-adjective

not be concerned about at all; not mind at all; not care a bit

Emphatic negative of 気になる; expresses that something does not bother or worry the speaker in the slightest. Often used when dismissing a potential concern.

See also: 気になる

• 彼かれが何なにを言いおうと、一いっ切さい気きにならない。

  No matter what he says, I don't care at all.

• 結けっ果かは一いっ切さい気きにならない。大だい事じなのは挑ちょう戦せんしたことだ。

  I'm not concerned about the result at all. What matters is that I tried.