unsubstantiated.

Not established or borne out by adequate supporting evidence.

Use it for

Words that belong together

• unsubstantiated allegation
• unsubstantiated claim

On the page

The inquiry identified the allegation as unsubstantiated after checking the available records.

An unsubstantiated claim was not used as the basis for the final recommendation.

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.