gaffe

1. N-COUNT A gaffe is a stupid or careless mistake, for example when you say or do something that offends or upsets people. (愚蠢或粗心的)錯誤

He made an embarrassing gaffe at the convention last weekend. 在上周的會議上，他犯了一個尲尬的錯誤。

...social gaffes committed by high-ranking individuals. …高級別的人犯的社交錯誤。