(|)in, ən+ noun
Etymology: Late Latin insensibilitas, from Latin insensibilis insensible + -itas -ity
: the quality or state of being insensible: as
a. : an unconscious or comatose state
b. : lack of physical feeling or sensitivity : an unresponsive or unreactive condition : insensitivity
marked insensibility to cold
increasing insensibility to stimuli
c. : lack of mental or emotional feeling or response : apathy
her complete insensibility to the honor done her