Synonyms: unfeelingness, insensibility, hardness, callosity, callousness
Definition: devoid of passion or feeling; hardheartedness
Similar words: insensitiveness, insensitivity
Definition: the inability to respond to affective changes in your interpersonal environment
Definition: an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
Similar words: hardening
Definition: abnormal hardening or thickening of tissue