The word microaggression refers to a statement, action, or incident regarded as an instance of indirect, subtle, or unintentional discrimination or prejudice against members of a marginalized group such as a racial minority.

Microaggression”（轻度冒犯）这个词用来描述对少数种族等边缘化群体的间接、细微或无意的歧视或偏见的一种说法、行动或事件。

It has become markedly more common in mainstream use over the past several years, but it has been used in academic contexts for decades.

在过去的几年里变得非常常用了，但其实在学术界这个词已经使用几十年了。