insoluble

insoluble is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
  2. 2.Strong. "An insoluble wall." [Obs.] Holland

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Related questions

Reverse-dictionary questions

Definition-first questions whose answer is insoluble.

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