What does "disparity" mean?

Disparity: Inequality; difference in age, rank, condition, or excellence; dissimilitude; -- followed by between, in, of, as to, etc.; as, disparity in, or of, years; a disparity as to color. The disparity between God and his intelligent creatures. I. Taylor. The disparity of numbers was not such as ought to cause any uneasiness. Macaulay.