noun
reaction formation
A psychoanalytic defense mechanism where a person unconsciously replaces an unacceptable impulse with its opposite, often expressed in exaggerated behavior. Technical term used in psychology.
反動形成の例として、憎しみを過剰な愛情で覆い隠すことが挙げられる。
An example of reaction formation is covering up hatred with excessive affection.
Compound of 反動 (reaction) and 形成 (formation), likely a calque from English or German psychological terminology.