adj. 25B6; adjective
an equable man : EVEN-TEMPERED, calm, composed, collected, self-possessed, relaxed, easy-going; nonchalant, insouciant, mellow, mild, tranquil, placid, stable, level-headed; imperturbable, unexcitable, untroubled, well balanced; informal unflappable, together, laid-back.
an equable climate : STABLE, constant, uniform, unvarying, consistent, unchanging, changeless; moderate, temperate.
temperamental, extreme.