nonsolvability

• a word derived from solvability.
  solvability

  noun

  the quality of being solvable.
• a word derived from solvable.
  solvable

  adjective

  capable of being solved, as a problem.

More Suggestions

• resolvability
• solvability
• insolubility
• observability
• comfortability
• enjoyability
• inoculability
• instability
• insurability