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Definition of callous
(Entry 1 of 2)
1a : being hardened and thickened
b : having calluses callous hands
2a : feeling no emotion
b : feeling or showing no sympathy for others : hard-hearted a callous indifference to suffering
callous
verbcalloused; callousing; callouses
Definition of callous (Entry 2 of 2)
: to make callous
hands calloused by hard manual labor
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The first known use of callous was in the 14th century
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