unsubstantiate.
To prove false; to disprove or discredit.
Meaning & usage
To prove false; to disprove or discredit.
To officially categorize (an allegation) as unsubstantiated.
To call into question; to create doubt about.
To make insubstantial or abstract; unsubstantialize.
Where this word comes from
From un- + substantiate.
Lacking substance; insubstantial.
Unsubstantiated; unproven.
Where this word comes from
From un- + substantiate.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.