1680s, from Middle French disconcerter (Modern French déconcerter) "confused," from dis- "do the opposite of" (see dis-) + concerter (see concert). Related: Disconcerted; disconcerting; disconcertingly.
例文
1. I behaved with a politeness which seemed to disconcert him.
私は礼儀が行き届いていて、これは彼を困惑させたようだ。
2.The events about to occur will disconcert others but not you.