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callous

adjective

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The first known use of callous was in the 14th century

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“Callous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/callous. Accessed 7 Mar. 2021.

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Dictionary: Definition of callous

Medical Dictionary: Definition of callous

Nglish: Translation of callous for Spanish Speakers

Britannica.com: Encyclopedia article about callous

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