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caustic

caustic

9 7.4
Being very sharp and unkind in speech or writing
  • adjective
  • /ˈkɔːstɪk/
translation icon : mordaz
  • Rat has a sarcastic wit and a caustic sense of humor.
  • caustic remarks

Examples

  • At times funny, touching, and caustic, it's a hell of a good read.

    Blog text (24)
  • In her low moods, she could be quite caustic about this.

    Fiction book (2001)
  • Perhaps I was a bit caustic.

  • In front of the camera, he turns caustic, even brutal.

    Fiction book (1994)
  • The men on the patches were making caustic remarks about it.

    Fiction book (1996)
  • I don't remember you being this caustic when we were younger.

  • I had a math teacher who was very caustic, really had a chip on her shoulder and berated students.

  • "Try." Richard Dutton's voice retained its habitual caustic edge, even though Molly knew he was making an effort to sound warm and understanding.

    Fiction book (1995)
  • Reith muttered, "Who would be interested in us?" Anacho gave a bark of caustic laughter.

    Fiction book (1993)
  • His caustic remarks during the meeting left everyone feeling uncomfortable.

Synonyms

bitter
vscaustic
360 2.5

Feeling or showing strong anger and hurt

is more deliberately biting and often uses clever mockery to wound
sarcastic
vscaustic
99 4.0

Using words that say the opposite of what you mean to mock or hurt someone

is harsher and more directly critical as well as ironic
scathing
vscaustic
19 7.7

Very strong, harsh criticism that hurts or shocks people

is more biting and often uses sharp irony rather than only attack
vitriolic
vscaustic
  • Offensive
10 9.3

Harsh, angry words that strongly hurt someone

is equally harsh but often adds sharp wit rather than malice
sardonic
vscaustic
9 8.1

Showing mocking, bitter humor that makes fun of people

is more openly critical and biting rather than only cynical wit
acrimonious
vscaustic
9 8.4

Full of angry, bitter words in a speech or argument

is more focused on cutting mockery and sharp criticism rather than anger
acerbic
vscaustic
8 8.2

Speech or writing that is harsh and likely to offend people

is harsher and commonly has a mocking edge as well
corrosive
vscaustic
7 7.1

Expressing harsh, biting criticism that hurts people or their confidence

is similar but emphasizes cutting tone rather than lasting damage
virulent
vscaustic
7 8.4

Very harsh and full of hate in speech or writing

is closer to sharp irony and biting remarks than pure hostility
blistering
vscaustic
5 7.0

Very harsh words or writing that attack someone

is similar but usually has a sharper mocking or biting tone
vituperative
vscaustic
  • Offensive
2 9.9

Using very angry and insulting words to attack someone

is more likely to use cutting irony rather than direct abuse
pungent
vscaustic
2 6.5

Sharp, biting words that can hurt or shock people

is harsher and typically more openly biting or sarcastic
mordant
vscaustic
  • Formal
1 8.7

Expressing sharp, often ironic criticism that can feel harsh

is more openly sarcastic and severe beyond just ironic wit
vinegary
vscaustic
1 5.9

Having a sharp, sour taste or smell

is usually more biting and often includes mocking irony as well
acid
vscaustic
1 7.0

Said in a sharp, hurtful way to criticize someone

is usually more mocking and personal rather than simply bitter
acrid
vscaustic
1 7.5

A harsh, bitter way of speaking that shows anger or criticism

is more biting in a mocking way rather than only unpleasant
tart
vscaustic
  • Slang
1 6.7

A sharp, biting remark that hurts or criticizes

is usually stronger and includes more sustained harshness or mockery
narky
vscaustic
  • UK
1 9.9

Having a sharp, unfriendly tone that criticizes others

is harsher and more deliberately mocking rather than just irritable
mordacious
vscaustic
  • Formal
9.9

Very critical and hurtful in speech or writing

is often more sarcastic and bitter rather than merely sharp
stinging
vscaustic
6.3

Harsh or hurtful in a way that makes someone feel upset

is more biting and often uses clever mockery to hurt
sulfurous
vscaustic
  • Formal
7.9

Harsh angry speech or writing that strongly criticizes people

is more cutting and often uses ironic mockery rather than anger
tonguey
vscaustic
  • Informal
8.9

Quick to say sharp things that hurt

is more forceful and tends to use mocking irony rather than quickness
sneery
vscaustic
8.8

Having a rude, mocking look or voice that shows dislike

is more biting and often uses clever irony rather than only contempt
venomous-tongued
vscaustic
  • Literature
9.4

Saying harsh, mean things that hurt people

is more likely to rely on sharp witty mockery rather than direct spite

Antonyms

235 1.0

Kind and not strong in action, sound, or touch

18 4.2

Saying good things about someone to show you admire them

Compounds

caustic potash
  • Specialized
1 7.0

A strong chemical used to make soap and fertilizers that can burn your skin

caustic remark
  • Offensive
1 7.2

A harshly critical comment that aims to hurt or mock someone

1 6.1

A very strong chemical that can burn skin and is used to make soap and clean things

caustic lime
  • Specialized
6.6

A white powder made by heating limestone, used in building and farming

lunar caustic
  • Archaic
9.9

A silver stick that doctors used to burn away warts and small growths

How Cutting

vitriolic
  • Offensive
10 9.3
scathing
19 7.7
caustic
9 7.4
biting
5.4
sharp
46 4.2
critical
210 3.8

Surface Forms

caustic positive

Morphology

caustic = caust + ic

The figurative sense ('biting' or 'severely critical') is a metaphorical extension of 'burning' and is related to the root meaning but not fully obvious to learners from the morphemes alone.

Etymology

Caustic comes from the Greek root kaustos meaning 'burning'. So when speech is called caustic, it is like 'burning' words—very sharp, biting remarks that can hurt or sting people.