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callous

American  
[kal-uhs] / ˈkæl əs /

adjective

  1. made hard; hardened.

    Synonyms:
    hard
    Antonyms:
    soft
  2. insensitive; indifferent; unsympathetic.

    They have a callous attitude toward the sufferings of others.

    Synonyms:
    obtuse, insensible
    Antonyms:
    sensitive
  3. having a callus; indurated, as parts of the skin exposed to friction.


verb (used with or without object)

  1. to make or become hard or callous.

callous British  
/ ˈkæləs /

adjective

  1. unfeeling; insensitive

  2. (of skin) hardened and thickened

"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

verb

  1. pathol to make or become callous

"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

Synonym Usage

See hard.

Other Word Forms

Etymology

Origin of callous

First recorded in 1375–1425; late Middle English from Latin callōsus “hard-skinned, tough,” equivalent to call(um) “tough skin, any hard substance” + -ōsus -ous

Explanation

A callous person is insensitive or emotionally hardened. If you laugh at your little sister while she's trying to show you her poetry, you're being callous. Callous comes from the Latin root callum for hard skin. If you walk barefoot a lot, your feet will become calloused. We often use callous, as an adjective or a verb, in the metaphorical sense for emotionally hardened. If someone is unmoved by other people's problems, you might say he shows a callous indifference to human suffering or that his heart has been calloused by his own problems.

Keep Reading on Vocabulary.com

Vocabulary lists containing callous

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.

See Examples For:

Treating that as a casual fallback plan, when they could take a reverse mortgage if need be, seems naive at best, and callous at worst.

From MarketWatch ● Oct. 6, 2026

“Primetime” presents itself as a story about Hansen’s callous quest for ratings and notoriety at the expense of his tact, but the portrait is unfinished.

From Salon ● Sep. 26, 2026

The company responded with a statement calling her suit “especially sad and distressing in its callous disregard for the horrific and prolonged global effects of the Covid-19 pandemic.”

From The Wall Street Journal ● Sep. 24, 2026

Judge Simon James described Boumzough's actions as "callous and cold-blooded" and Graham as someone who had "his whole life to realise his dreams and aspirations."

From BBC ● Jul. 3, 2026

I felt rather exhausted, and wondered, rather shocked at my callous thought, why old people were sometimes such a strain.

From "Rebecca" by Daphne du Maurier

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