第だい一いっ感かん

noun

first impression; immediate thought

Refers to the very first thought or feeling that comes to mind upon encountering something or someone.

• 彼かれに会あった第だい一いっ感かんは、とても誠せい実じつそうだということだった。

  My first impression upon meeting him was that he seemed very sincere.

• この企き画かくを聞きいた第だい一いっ感かんは「面おも白しろそう」だった。

  My immediate thought when I heard about this project was 'That sounds interesting.'