Callous is defined as cruel or insensitive.(adjective)
If you laugh at someone who is hurting and don't offer to help, this is an example of when you arecallous; a callous laugh.
See callous in Webster's New World College Dictionary
Origin: ME < L callosus < callum, hard skin
transitive verb, intransitive verb
See callous in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old French cailleux
Origin: , from Latin callōsus
Origin: , from callum, hard skin.
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