A microaggression is a comment or action that negatively targets a marginalized group of people. A microaggression can be intentional or accidental. It is a form of discrimination.
People who use microaggressions may mean no harm toward the person or group they use it against. They may not even realize that they are making a microaggressive comment or action.
However, microaggressions can be very hurtful to the people who experience them.
This article will provide more detail on what a microaggression is, as well as some examples and how to avoid using them.