アストニッシメント

noun

astonishment

A direct loanword from English, used in Japanese to express great surprise or amazement, often in a slightly formal or emphatic context.

• 彼かれの突とつ然ぜんの辞じ職しょくにはアストニッシメントを禁きんじ得えなかった。

  I couldn't help but feel astonishment at his sudden resignation.