n.

1. 不均等；不平等；不平衡[U][C]
   There are many inequalities in the law.

   法律上有許多不平等的地方。

   inequality of treatment

   待遇上的不平等

   social inequality

   社會的不平等

2. （表面的）不平坦；不齊整[C][P1]
   There are many inequalities in the surface of this old road.

   這條古舊道路的路面有許多高低不平之處。

3. 【數】不等（式）

n.

1. lack of equality.
2. Mathematics  a symbolic expression of the fact that two quantities are not equal, employing a sign such as ≠ ‘not equal to’, > ‘greater than’, or < ‘less than’.
3. archaic lack of smoothness or regularity in a surface.