\In`e*qual"i*ty\, n.; pl. {Inequalities}. [L.
inaequalitas.]
1. The quality of being unequal; difference, or want of
   equality, in any respect; lack of uniformity;
   disproportion; unevenness; disparity; diversity; as, an
   inequality in size, stature, numbers, power, distances,
   motions, rank, property, etc.
         There is so great an inequality in the length of our
         legs and arms as makes it impossible for us to walk
         on all four.                          --Ray.
         Notwithstanding which inequality of number, it was
         resolved in a council of war to fight the Dutch
         fleet.                                --Ludlow.
         Sympathy is rarely strong where there is a great
         inequality of condition.              --Macaulay.
2. Unevenness; want of levelness; the alternate rising and
   falling of a surface; as, the inequalities of the surface
   of the earth, or of a marble slab, etc.
         The country is cut into so many hills and
         inequalities as renders it defensible. --Addison.
3. Variableness; changeableness; inconstancy; lack of
   smoothness or equability; deviation; unsteadiness, as of
   the weather, feelings, etc.
         Inequality of air is ever an enemy to health.
                                               --Bacon.
4. Disproportion to any office or purpose; inadequacy;
   competency; as, the inequality of terrestrial things to
   the wants of a rational soul. --South.
5. (Alg.) An expression consisting of two unequal quantities,
   with the sign of inequality (.gt. or .lt.) between them;
   as, the inequality 2 .lt. 3, or 4 .gt. 1.
6. (Astron.) An irregularity, or a deviation, in the motion
   of a planet or satellite from its uniform mean motion; the
   amount of such deviation.