kɔːstɪk

Definitions

1. adjective

having a harsh, corrosive, or biting quality, especially in tone or language; capable of causing damage or harm

“The comedian’s caustic wit left the audience in stitches.”

2. noun

a caustic substance, especially a chemical solution used for cleaning or removing surface material

“The chemist carefully handled the caustic to avoid any accidents.”

3. verb

to cause damage or harm, especially through harsh or biting language

“The politician’s speech was caustic towards the opposing party.”