unfalsifiable.

Not capable of being shown false by a possible observation or test under the relevant formulation.

Use it for

Words that belong together

• unfalsifiable claim
• unfalsifiable explanation

On the page

The explanation became unfalsifiable when every possible result was treated as confirming it.

An unfalsifiable claim could not be evaluated by the proposed empirical procedure.

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.