In which defence mechanism does an individual substitute behaviour, thoughts, or feelings that are the direct opposite of unacceptable ones?

Question

Quizplus · Accepted Answer

Reaction formation is a defence mechanism in which an individual substitutes behaviour, thoughts, or feelings that are the direct opposite of unacceptable ones. For instance, someone who despises a certain group of people may go out of their way to be overly friendly and accommodating towards them in order to hide their true feelings.

In Which Defence Mechanism Does an Individual Substitute Behaviour, Thoughts