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unsoluble

  • a word derived from soluble.
    soluble
    adjective
    capable of being dissolved or liquefied.

Example Sentences

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All pearls in mind’s muddy acid; And if found unsoluble bury them, Wrapped in the shroud of denial.

From Voices; Birth-Marks; The Man and the Elephant by Mathew Joseph Holt

There was one report that was of special interest because it was an excellent example of how a UFO report can at first appear to be absolutely unsoluble then suddenly fall apart under thorough investigation.

From The Report on Unidentified Flying Objects by Edward J. Ruppelt