/ee'kweuh nim"i tee, ek'weuh-/ , n.
mental or emotional stability or composure, esp. under tension or strain; calmness; equilibrium.
[ 1600-10; aequanimitas, equiv. to aequ ( us ) even, plain, equal + anim ( us ) mind, spirit, feelings + -itas -ITY ]
Syn . serenity, self-possession, aplomb.
Ant . panic, disquiet, discomposure, agitation.