Impassibility

(n.) The quality or condition of being impassible; insusceptibility of injury from external things.

Thesaurus Entries

abatement, allayment, alleviation, anesthesia, anesthetizing, anxiety equivalent, appeasement, assuagement, callousness, deadening, deadness, depraved appetite, diminishment, diminution, dulling, dullness, ease, easement, easing, electronarcosis, impassibility, imperception, imperceptiveness, imperceptivity, impercipience, inconsiderateness, insensibility, insensibleness, insensitiveness, insensitivity, insentience, lessening, lulling, mitigation, mollification, narcosis, narcotization, neurasthenia, numbing, numbness, obtuseness, palliation, paresthesia, parorexia, pica, pins and needles, reduction, relief, remedy, salving, softening, soothing, speech abnormality, subduement, thick skin, unfeeling, unfeelingness, unperceptiveness