An example of something insoluble is a cryptic phrase in an old mystery book that people have been trying to uncode for centuries.
- that cannot be solved; unsolvable
- that cannot be dissolved; not soluble
Origin of insolubleMiddle English insolible from Classical Latin insolubilis
- That cannot be dissolved: insoluble matter.
- Difficult or impossible to solve or explain; insolvable: insoluble riddles.
Origin of insolubleMiddle English insolible from Latin īnsolūbilis in- not ; see in- 1. solvere to loosen ; see soluble .
- in·sol′u·bil′i·ty in·sol′u·ble·ness
(comparative more insoluble, superlative most insoluble)
From Old French, from Latin insolubilis (in- + solubilis).