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Definitions

caustic

[kaw-stik] / ˈkɔ stɪk /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A chemical, thought to be caustic soda, is understood to have entered the water at the Knockando burn, which flows into the River Spey, in the last few days.

From BBC • May 3, 2026

She’s forward and caustic, with a sharp wit and a hefty Jersey accent that doesn’t exactly scream “therapist’s office” — unless your therapist is Dr. Melfi from “The Sopranos,” in which case, lucky you.

From Salon • Apr. 29, 2026

Okrent portrays Sondheim as witty and endearing, but also poorly groomed, remote, caustic, quick to anger — and, mostly, quick to forgive.

From Los Angeles Times • Mar. 17, 2026

At this point, you just don’t like each other, which makes communication feel even more caustic.

From MarketWatch • Feb. 27, 2026

At the same time it continued to boil, forming thick, low clouds, dark as tar, caustic, and ready to burst into flame.

From "The Name of the Wind" by Patrick Rothfuss




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