infelicitous

他在葬礼上讲的笑话很不合时宜，让在场的人都很尴尬。

His joke at the funeral was ___infelicitous and made everyone cringe.

他在敬酒时不恰当地提到她最近的离婚，让在场的婚礼宾客都惊得鸦雀无声。

His ___infelicitous mention of her recent divorce during the toast stunned the wedding guests into silence.

经理在公司全员邮件中不恰当的措辞引发了员工不必要的恐慌。

The manager's ___infelicitous phrasing in the company-wide email sparked an unnecessary panic among staff.