What word describes a comment that is witheringly scornful?

The term "scathing" effectively describes a comment that is harshly critical or witheringly scornful. When someone makes a scathing remark, it often conveys a strong sense of disdain that can be damaging or cutting to the recipient. This aligns perfectly with the definition of scornful, which involves a contemptuous lack of respect for someone or something. In contexts where criticism is either needed or uninvited, a scathing comment stands out for its particularly sharp and piercing nature, often intended to hurt or belittle.

In contrast, other options do not carry the same connotation. For instance, "fracas" refers to a noisy disturbance or quarrel, which is unrelated to the notion of scornful commentary. "Robust" indicates strength or vigorousness, while "sustained" suggests continuity or persistence. Neither of these aligns with the idea of scornful commentary, thus highlighting why "scathing" is the most suitable choice for this context.