意い表ひょうに出でる

expression, ichidan verb

take by surprise; do something unexpected

Used when someone acts in a way that catches others off guard, often in a strategic or clever manner. Similar to 意表を突く, but focuses on the action itself rather than the effect.

See also: 意表を突く

• 彼かれは会かい議ぎで意い表ひょうに出でる発はつ言げんをして、みんなを驚おどろかせた。

  He made an unexpected remark at the meeting and surprised everyone.

• 相あい手ての意い表ひょうに出でる作さく戦せんが功こうを奏そうした。

  The strategy of catching the opponent off guard paid off.