What term refers to the act of harshly criticizing or scolding someone?

The term that refers to the act of harshly criticizing or scolding someone is "lambaste." This word comes from the idea of striking something with force, which metaphorically extends to delivering strong verbal reprimands. When someone lambastes another, they are not merely offering mild criticism; instead, they are intensely and often publicly chastising them, highlighting serious shortcomings or failures. This emphasis on a harsh tone and robust delivery of criticism sets "lambaste" apart from other words with less severe connotations.

In contrast, "lassitude" refers to a state of physical or mental weariness, making it unrelated to the act of criticism. "Inimitable" describes something that cannot be imitated, which is not connected to scolding at all. Meanwhile, "lament" involves expressing sorrow or regret, which differs significantly from the concept of harsh criticism. Therefore, "lambaste" stands as the clear choice for the specific action of scolding or severe criticism.