不ふ溶よう

noun which may take the genitive case particle 'no'

insoluble

Used in scientific contexts to describe a substance that does not dissolve in a solvent. Often appears in compound terms like 不溶性 (insolubility).

See also: 不溶性

• この物ぶっ質しつは水みずに不ふ溶ようです。

  This substance is insoluble in water.