unprovable.

Not capable of being established by proof within the applicable method, evidence or formal system.

Use it for

Words that belong together

• unprovable proposition
• unprovable allegation

On the page

The proposition was unprovable within the specified formal system, not necessarily in every stronger system.

The allegation remained unprovable from the surviving evidence even though it was not disproved.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Ordinarily non-gradable for the stated logical or evidential status; use degree only where the context genuinely permits it. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: evidence assessment, qualification, argument critique, assumption analysis. Disciplines: argumentation, logic, research interpretation, formal writing. Commonness: moderately common.