不ふ均きん質しつ

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.

• この材ざい料りょうは不ふ均きん質しつで、場ば所しょによって強きょう度どが違ちがう。

  This material is heterogeneous, and its strength varies from place to place.

• 不ふ均きん質しつなデータを扱あつかうのは難むずかしい。

  It is difficult to handle non-uniform data.