DictionarycausticHarsh criticism
adjective / noun

caustic

KAW-stik/ˈkɔːstɪk/

Able to burn or corrode living tissue.

The warning label identifies the cleaning solution as highly caustic.

A woman delivers a cutting, sarcastic remark with a tight half-smile and a dismissive palm-up gesture; the man facing her recoils slightly, visibly stung by her harsh expression.
Etymology

The burning root first described substances that corrode living tissue. Applied to speech, that destructive burning became an image for biting sarcasm or severe criticism.

In context

Facts Verse1:19
dry and sometimes caustic sense of humor
David Letterman Hated This Late Show Guest More Than Anyone

More examples

  • The caustic liquid can burn exposed skin.
  • Laboratory staff store caustics in suitable containers.
  • The laboratory stores the caustic solution in a suitable container.

Forms

caustic · caustics

Similar words

corrosive
Emphasizes destructive chemical action on tissue or other materials.
acerbic
Specifically describes a sharp or biting manner of expression.