平へい静せいを装よそおう

expression, godan verb (-u)

feign composure; pretend to be calm

Used when someone outwardly acts calm while hiding inner turmoil, nervousness, or anger.

• 彼かれは内ない心しん動どう揺ようしていたが、平へい静せいを装よそおって会かい議ぎに臨のぞんだ。

  He was shaken inside, but he feigned composure and attended the meeting.

• 平