caustic

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/ˈkɑː.stɪk/

adjective
Bitter, biting, acidic

caustic in a sentence

  • “The politicians exchanged caustic insults for over an hour during the debate.”
  • “The chemical was so caustic that it ate through the pipes.”
  • “She wrote a caustic report about the decisions that led to the crisis.”
  • “Her caustic wit and humor seem unmistakably New York. — Daniel Foster, National Review , 23 Jan. 2025.”

What does “caustic” mean?

caustic (adjective) means bitter, biting, acidic. It is pronounced /ˈkɑː.stɪk/. Vocaby pairs the definition with audio and real example sentences so the word is easy to remember — and brings it back for review right before you'd forget it.

Frequently asked questions

What does "caustic" mean?
caustic (adjective) means: Bitter, biting, acidic
How do you pronounce "caustic"?
"caustic" is pronounced /ˈkɑː.stɪk/ in IPA. You can tap to hear it spoken aloud in the Vocaby app.
How do you use "caustic" in a sentence?
Here is "caustic" used in a sentence: The politicians exchanged caustic insults for over an hour during the debate.

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