overreact

This term carries a strong negative connotation, implying a lack of emotional control or a failure of judgment. It suggests a disproportionate response where the reaction outweighs the actual trigger, often leading to social awkwardness or unnecessary conflict.

In professional or clinical settings, the word is used to describe an exaggerated physiological or psychological response. In casual conversation, it is frequently used as a critique of someone's temperament, often appearing in the phrase "don't overreact" to advise composure.