callosity vs insensibility

callosity and insensibility both are nouns.

Word	Noun	Adjective	Verb	Adverb
callosity	Yes	No	No	No
insensibility	Yes	No	No	No

As nouns, callosity and insensibility are synonyms defined as:

callosity and insensibility: devoid of passion or feeling; hardheartedness

Other synonyms of callosity include callousness, hardness, unfeelingness.

callosity (noun)	insensibility (noun)
devoid of passion or feeling; hardheartedness	devoid of passion or feeling; hardheartedness
an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)	a lack of sensibility