1) Composure 
• (n.) The quality or condition of being equable; evenness or uniformity; as, equability of temperature; the equability of the mind.
E`qua·bil'i·ty noun [ Latin aequabilitas , from aequabilis . See Equable .] The quality or condition of being equable; evenness or uniformity; as, equability of temperature; the equability of the mind. « For the celestial bodies, the equability and co...
equability Evenness, as of temper or action.