impassive, impassivity, impassiveness 1. Not feeling pain; not feeling or showing emotion. 2. Expressionless, unresponsive to something that might normally excite interest or emotion. 3. Insensible, unconscious; placid, serene, calm, unperturbed; apathetic. 4. Deprived of feeling or sensation; insensible, unconscious. Found on http://www.wordinfo.info/words/index/info/view_unit/2571/2