noun, na-adjective
lack of uniformity; unevenness; inequality; disproportion
General term for something not being uniform, even, or equal; used as a noun or na-adjective.
この地域では教育の質に不均一が見られる。
There is a lack of uniformity in the quality of education in this region.
色が不均一
The color was applied unevenly.
noun-modifying (irregular)
heterogeneous; nonuniform
Chemistry term for a mixture or substance that is not uniform in composition.
不均一な混合物を撹拌する。
Stir the heterogeneous mixture.
Also means 'unequal' or 'unbalanced', but often used for distribution or opportunity rather than physical uniformity.
Compound of 不 (fu-, 'not') + 均一 (kin'itsu, 'uniform').