Scathing means harshly and severely critical, like criticism so sharp it could leave a mark. When a teacher writes a scathing review of a student's careless work, the comments might point out every single error and explain exactly how the student fell short. When a book reviewer writes a scathing critique, they methodically explain what went wrong, often with biting examples and cutting language.

The word suggests criticism that's intensely negative, delivered with force and precision. A disappointed parent might say, “I'm not happy with this grade,” but a scathing remark would be much sharper: “This work shows no effort whatsoever.”

Scathing criticism usually comes from someone knowledgeable enough to identify specific problems and confident enough to express their judgment strongly. Film critics might write scathing reviews of poorly made movies. Scientists might publish scathing responses to flawed research. The word often appears with words like “review,” “criticism,” “attack,” or “commentary.”

While scathing criticism can feel brutal, it sometimes serves a purpose: it can push people to do better or expose serious problems that need attention, especially when it's fair and specific.