1. The plural of insolubleness; the quality or state of being insoluble; inability to be dissolved or solved.
Usage: Formal or technical usage; Plural form of the abstract noun insolubleness

Examples

• The insolublenesses of certain chemical compounds make them useful in industrial applications.
• Scientists studied the insolublenesses of various salts in different solvents.
• The insolublenesses of these mathematical problems frustrated researchers for decades.
• Different minerals exhibit varying degrees of insolublenesses in water.
• The insolublenesses of the ethical dilemmas presented in the case study sparked lengthy debate.