| \ee-kwuh-NIM-i-tee, ek-wuh-\ | noun 1. mental or emotional stability or composure, especially under tension or strain; calmness; equilibrium. | | Quotes | He responded to all these inquiries with equanimity<... See full quote -- Elizabeth Royte, "Out of the Woods," The New Yorker, May 14, 2001 | | Origin | | Equanimity can be traced to the Latin aequanimitas,... See full origin | |