unverifiable
/ʌnˈvɛrəˌfaɪəbəl/
adjective
- Impossible to check or prove as true or accurate.
- Many claims made in online advertisements are unverifiable without purchasing the product.
- Historians often struggle with unverifiable details in ancient manuscripts.
- The witness gave an unverifiable account of the event, with no one else present to confirm it.
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