1. (a.) Equal and uniform; continuing the same at different times; -- said of motion, and the like; uniform in surface; smooth; as, an equable plain or globe.

2. (a.) Uniform in action or intensity; not variable or changing; -- said of the feelings or temper.

accordant alike automatic balanced calm collected composed consistent consonant constant continuous cool correspondent dispassionate easygoing equal equivalent even even-tempered flat homogeneous immutable imperturbable invariable level level-headed levelheaded measured mechanical methodic methodical monolithic of a piece ordered orderly peaceful persistent placid regular reposeful robotlike same serene smooth stabile stable steadfast steady systematic tranquil unbroken unchangeable unchanged unchanging undeviating undifferentiated undiversified unflappable uniform unruffled unvaried unvarying