expression, ichidan verb
be caught off guard; be caught unprepared
Passive expression meaning one's weak point or unguarded moment is exploited, leading to surprise or disadvantage.
相手の鋭い質問に虚を突かれて、何も答えられなかった。
I was caught off guard by the opponent's sharp question and couldn't answer anything.
不意
I was caught unprepared by the unexpected event.