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Synonyms

caustic

American  
[kaw-stik] / ˈkɔ stɪk /

adjective

  1. capable of burning, corroding, or destroying living tissue.

  2. severely critical or sarcastic.

    a caustic remark.

    Synonyms:
    acid, scathing, bitter, mordant, biting

noun

  1. a caustic substance.

  2. Optics.

    1. caustic curve.

    2. caustic surface.

caustic British  
/ ˈkɔːstɪk, kɔːˈstɪsɪtɪ /

adjective

  1. capable of burning or corroding by chemical action

    caustic soda

  2. sarcastic; cutting

    a caustic reply

  3. of, relating to, or denoting light that is reflected or refracted by a curved surface

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. Also called: caustic surface.  a surface that envelops the light rays reflected or refracted by a curved surface

  2. Also called: caustic curve.  a curve formed by the intersection of a caustic surface with a plane

  3. chem a caustic substance, esp an alkali

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • caustical adjective
  • caustically adverb
  • causticity noun
  • causticly adverb
  • causticness noun
  • noncaustic adjective
  • noncaustically adverb
  • overcaustic adjective
  • overcaustically adverb
  • overcausticity noun
  • uncaustic adjective
  • uncaustically adverb

Etymology

Origin of caustic

1350–1400; Middle English < Latin causticus < Greek kaustikós burning, caustic, equivalent to kaust ( ós ) burnt (verbal adjective of kaíein to burn) + -ikos -ic

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.

Over the past 14 years, Warsh has been a consistent critic of the Fed, often in caustic terms.

From MarketWatch

Over the past 14 years, Warsh has been a consistent critic of the Fed, often in caustic terms.

From MarketWatch

Though she is not a satirist, her gimlet-eyed prose conveys a caustic humor that feels more British than American.

From The Wall Street Journal

Several people who have spoken with Warsh said they have been taken aback by what they view as the caustic nature of his criticisms of Fed leaders.

From The Wall Street Journal

Several people who have spoken with Warsh have been taken aback at the caustic nature of his criticisms of Fed leaders.

From The Wall Street Journal