プログレッシブ和英中辞典(第4版)の解説
きょうい【驚異】
(a) wonder
驚異的 wonderful; surprising；marvelous，《英》 marvellous
天体の驚異
the wonder of heavenly bodies
驚異の目を見張る
stare in wonder／look with wonder ((at))
学生がみな英会話がうまいのは驚異だった
I 「was surprised [marveled] at the fact that all the students were so good at speaking English.
彼の発明は驚異的だ
That invention of his is a wonder [marvel].