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caustic

Upper-Intermediate (B2)

IPA: /ˈkɔːstɪk/

KK: /ˈkɔːstɪk/

adjective
Definition

Able to burn or corrode living tissue; also describes something that is harshly critical or sarcastic.


Example

Her caustic remarks during the meeting made everyone uncomfortable.


Conversation
Sloth A
Did you hear his comments during the meeting?
Sloth B
Yeah, they were a bit too caustic for my taste.
Sloth A
I agree, he can really cut deep with his words sometimes.
Sloth B
It's like he doesn't realize how his caustic remarks affect others.

Synonyms & Antonyms
Synonyms
corrosive
acerbic
sarcastic
Antonyms
gentle
mild
soothing
noun
Definition

A substance that can burn or damage living tissue through chemical action.


Example

The scientist handled the caustic carefully to avoid any accidents.


Conversation
Sloth A
Did you hear about that chemical spill at the lab?
Sloth B
Yeah, I did! They said it involved a really caustic substance.
Sloth A
That's dangerous! I hope everyone is okay.
Sloth B
Root Explanation

Caustic → It is derived from the Greek word "kaustikos" (meaning able to burn) and the root "kaustos" (meaning burnt). The word "caustic" refers to substances that can burn or corrode organic tissue by chemical action.

Memory Tip

Think of something that is 'able to burn' — that's what caustic means, referring to substances that can cause burns or corrosion.

Visually Confused Words
encaustic
casuistic
clastic
castice
austric
diacaustic
dicastic
cushitic
Is this page helpful?
Me too! I can't believe they were handling something so risky.

Synonyms & Antonyms
Synonyms
alkali
lye
soda
Antonyms
neutral
mild
gentle