a smile that expresses satisfaction or pleasure about having done something or knowing something that is not known by someone else

"Maybe your husband does things that you don't know about," he said with a smirk. “你丈夫也许在做些你不知道的事情。”他诡秘地笑着说。

"I told you it would end in disaster," said Polly with a self-satisfied smirk on her face. “我告诉过你这会是一场灾难，”波莉脸上露出自得的笑。

Compare: simper noun

to smile in a way that expresses satisfaction or pleasure about having done something, or knowing something that is not known by someone else

I don't like the way he winks and smirks at me whenever he sees me. 我不喜欢他每次看到我时一边眨眼睛一边得意地笑。

He smirked his way through the interview. 整个面试过程中他都在得意地笑。

Compare: simper verb