unequal
adjective uk/ʌnˈiː.kwəl/ us/ʌnˈiː.kwəl/
(NOT THE SAME)
formal（尺寸、水平、数量等）不相等的，不同的
different in size, level, amount, etc.
The slices were unequal in size. 这两片大小明显不一样。
(NOT FAIR)
不公平的，不平等的
not treating everyone the same; unfair
Until women are paid as much as men, they will be competing on unequal terms. 在男女同工同酬前，妇女将会一直在不平等的条件下与男人竞争。
They have an unequal relationship. 他们之间的关系相当不平等。
(NOT ABLE)
be unequal to somethingformal 对…不能胜任;对…力所不及
to not have the necessary ability, power, or qualities to achieve something
He tried to cheer her up but found himself unequal to the task. 他想让她高兴起来，但发现他根本无法做到。