undecideable

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A form of undecidable — Incapable of being algorithmically decided in finite time. For example, a set of strings is undecidable if it is impossible to program a computer (even one with infinite memory) to determine whether or not specified strings are included.

Similar
undecidableimpossible
Opposite
decideable
Scrabble 18
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Meanings

adjectiveundecideable (not comparable)
  1. alternativenot comparableAlternative form of undecidable.

Synonyms & antonyms

adjectivenot capable of being decided as following or not following from the axioms of a logical system

Similar
undecidableimpossible
Opposite
decideable
Also see
undecidable

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

undecideable. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/undecideable

MLA

“undecideable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/undecideable. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “undecideable,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/undecideable.

Source: undecideable on Wiktionary, CC BY-SA 4.0.