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Some common synonyms of caustic<\/em> are acrid<\/em><\/a>, mordant<\/em><\/a>, and scathing<\/em><\/a>. While all these words mean \"stingingly incisive,\" caustic<\/em> suggests a biting wit.<\/p>

\/\/ caustic<\/em> comments<\/p>" } }, { "@type": "Question", "name": "When is 'acrid' a more appropriate choice than 'caustic'?", "acceptedAnswer": { "@type": "Answer", "text": "

While the synonyms acrid<\/em><\/a> and caustic<\/em> are close in meaning, acrid<\/em> implies bitterness and often malevolence.<\/p>

\/\/ acrid<\/em> invective<\/p>" } }, { "@type": "Question", "name": "In what contexts can 'mordant' take the place of 'caustic'?", "acceptedAnswer": { "@type": "Answer", "text": "

In some situations, the words mordant<\/em><\/a> and caustic<\/em> are roughly equivalent. However, mordant<\/em> suggests a wit that is used with deadly effectiveness.<\/p>

\/\/ mordant<\/em> reviews of the play<\/p>" } }, { "@type": "Question", "name": "When might 'scathing' be a better fit than 'caustic'?", "acceptedAnswer": { "@type": "Answer", "text": "

Although the words scathing<\/em><\/a> and caustic<\/em> have much in common, scathing<\/em> implies indignant attacks delivered with fierce severity.<\/p>

\/\/ a scathing<\/em> satire<\/p>" } } ] }

Definition of causticnext

Synonym Chooser

How does the adjective caustic contrast with its synonyms?

Some common synonyms of caustic are acrid, mordant, and scathing. While all these words mean "stingingly incisive," caustic suggests a biting wit.

caustic comments

When is acrid a more appropriate choice than caustic?

While the synonyms acrid and caustic are close in meaning, acrid implies bitterness and often malevolence.

acrid invective

In what contexts can mordant take the place of caustic?

In some situations, the words mordant and caustic are roughly equivalent. However, mordant suggests a wit that is used with deadly effectiveness.

mordant reviews of the play

When might scathing be a better fit than caustic?

Although the words scathing and caustic have much in common, scathing implies indignant attacks delivered with fierce severity.

a scathing satire

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of caustic Okrent portrays Sondheim as witty and endearing, but also poorly groomed, remote, caustic, quick to anger — and, mostly, quick to forgive. Los Angeles Times, 17 Mar. 2026 Anhydrous ammonia is caustic and must be handled as a compressed gas, but given the high nitrogen content, technology was developed to store and transport so it could be injected into cropland. Edward Lotterman, Twin Cities, 15 Mar. 2026 To the filmmakers’ credit, though, tension and edgy humor are sustained for nearly 90 minutes of caustic entertainment. Dennis Harvey, Variety, 14 Mar. 2026 This caustic underbelly of the internet has never been closer to the surface. Jr Radcliffe, jsonline.com, 5 Mar. 2026 See All Example Sentences for caustic
Recent Examples of Synonyms for caustic
Adjective
  • In her response, Stanton was livid and sarcastic.
    Moira Donegan, New Yorker, 13 Mar. 2026
  • Adebayo said with a sarcastic smile.
    Ira Winderman, Sun Sentinel, 12 Mar. 2026
Adjective
  • Martin’s rendering of these people is somewhere between sincere and satirical and somehow this technique works.
    John Warner, Chicago Tribune, 21 Mar. 2026
  • The darkly satiric film expands to LA, SF, and DC next week and nationwide throughout April.
    Jill Goldsmith, Deadline, 20 Mar. 2026
Adjective
  • In conventional fuel cells, chemical reactions take place in highly acidic conditions.
    Prabhat Ranjan Mishra, Interesting Engineering, 26 Mar. 2026
  • In terms of soil pH levels, tulips prefer neutral to slightly acidic soil.
    Michelle Mastro, Architectural Digest, 24 Mar. 2026
Adjective
  • Fires caused by Israeli strikes on oil reservoirs on Saturday burned for multiple days, prompting Iranian officials to warn residents against acid and toxic rain that resulted from the significant amount of pollutants in the air.
    Julia Jacobo, ABC News, 10 Mar. 2026
  • An arrest has been made in an acid attack on a Long Island college student that happened nearly five years ago.
    Alexa Herrera, CBS News, 10 Feb. 2026
Adjective
  • Page used barbed wire wrapped around a chair to bust MJF open and hit a Deadeye through a table.
    Ryan Gaydos, FOXNews.com, 16 Mar. 2026
  • Have Faith Haiti, with its 30-foot-tall walls, barbed wire and guard towers, looks like a prison from the outside.
    Denise Schrier Cetta, CBS News, 15 Mar. 2026
Adjective
  • But restrictions on press freedom have a corrosive effect.
    Kathy Kiely, The Conversation, 17 Mar. 2026
  • The acid rain can also be corrosive, depending on the concentration, and accelerate the corrosion that buildings in Tehran face regularly due to the poor air quality, Driscoll said.
    Julia Jacobo, ABC News, 10 Mar. 2026

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Cite this Entry

“Caustic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/caustic. Accessed 27 Mar. 2026.

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