noun an irregularity, or a deviation, in the motion of a planet or satellite from its uniform mean motion; the amount of such deviation.
2. inequality ·noun variableness; changeableness; inconstancy; lack of smoothness or equability; deviation; unsteadiness, as of the weather, feelings, ·etc.
3. inequality ·noun disproportion to any office or purpose; inadequacy; competency; as, the inequality of terrestrial things to the wants of a rational soul.
4. inequality ·noun an expression consisting of two unequal quantities, with the sign of inequality () between them; as, the inequality 2 1.
5. inequality ·noun 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.
6. inequality ·noun 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.