発音記号は ɪnˈkred.ə.bli (US) 。
used for saying that something is very difficult to believe:
Incredibly, no one was hurt in the accident.
※hurt 怪我をする、accident 事故
We missed our flight but, incredibly, got there on time.
※got there 着いた、 on time 時間通り
His car turned over and caught on fire and yet, incredibly, he escaped unscathed.
※turn over 横転、escaped unscathed 無傷で逃げた