(n.) The quality or state of being immovable; fixedness; steadfastness; as, immovability of a heavy body; immovability of purpose.

abatement allayment alleviation analgesia anesthetizing anxiety equivalent appeasement assuagement autism callousness catatonia chill chilliness cold blood cold heart coldheartedness coldness coolness deadening deadness deadpan depraved appetite diminishment diminution dispassion dispassionateness dulling dullness ease easement easing electronarcosis emotional deadness emotionlessness frigidity frostiness heartlessness iciness immovability impassibility impassiveness impassivity imperception imperceptiveness imperceptivity impercipience inconsiderateness inexcitability insensibility insensibleness insensitiveness insensitivity insentience lack of affect lack of feeling lack of touch lessening lulling mitigation mollification narcosis narcotization neurasthenia numbing numbness objectivity obtuseness palliation paresthesia parorexia passionlessness pica pins and needles poker face reduction relief remedy salving self-absorption softening soothing soullessness speech abnormality spiritlessness straight face subduement thick skin unemotionalism unexcitability unfeeling unfeelingness unimpressibility unimpressionableness unpassionateness unperceptiveness unresponsiveness unsusceptibility unsympatheticness untouchability withdrawal