noun which may take the genitive case particle 'no'
heterogeneous; uneven in quality; non-uniform
Describes something that is not uniform in composition, quality, or character. Often used in technical or formal contexts.
This material is heterogeneous, and its strength varies from place to place.
It is difficult to handle non-uniform data.
不均質 is the direct opposite of 均質, meaning heterogeneous or uneven in composition or quality.
heterogeneity
Compound of 不 (fu, 'not') + 均質 (kinshitsu, 'homogeneous'). 均質 itself is from 均 (kin, 'equal') + 質 (shitsu, 'quality').