Definition of inequalities:
(n) :
A condition or state (of social, cultural, or legal matters) that is not equal; especially, such a condition that is thereby also unfair.
(n) :
Absence of equality.
(n) :
(mathematics) A statement that of two quantities one is specifically less than (or greater than) another. Symbol: < or ≤ or > or ≥ or ne , as appropriate.
(n) :
(of surfaces or objects) Unevenness, irregularity.