noun. The state of being even, level, or smooth; equality of surface: as, the evenness of the ground; the evenness of a fluid at rest.

noun. Uniformity; regularity; equality: as, evenness of motion.

noun. Equal distance from either extreme; freedom from inclination to either side; impartiality.

noun. Calmness; equality of temper; freedom from perturbation; equanimity.

noun. The state of being ven, level, or disturbed; smoothness; horizontal position; uniformity; impartiality; calmness; equanimity; appropriate place or level.

noun. The quality of being even.

noun. the parity of even numbers (divisible by two)

noun. a quality of uniformity and lack of variation

noun. the quality of being balanced

"But the research by Crowder, an insect ecologist at Washington State University in Pullman, and his colleagues, shows the importance of 'evenness' - the relative abundance of different species."

equality  parity  

affability  artlessness  calmness  candour  comprehensiveness  

abnegation  abstinence  accordance  balance  bilateral symmetry