# insoluble

> English word · Adjective · IPA /ɪnˈsɒljʊbəl/ · frequency rank #35,782

## Definitions
1. That cannot be dissolved.
2. That cannot be solved.
3. That cannot be explained.
4. That cannot be broken down or dispersed.

## Etymology
From Middle English insolible, from Middle French insoluble, from Latin insolūbilis, from in- + solūbilis. Piecewise doublet of insolvable and unsolvable. By surface analysis, in- + soluble.

## Common misspellings (13)
`innsoluble`, `inosluble`, `inslouble`, `insolbule`, `insolluble`, `insolubble`, `insolubel`, `insolublle`, `insolulbe`, `insoulble`, `inssoluble`, `isnoluble`, `nisoluble`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/insoluble