1
Core quality
Not supported by facts, evidence, or a sound basis.
Example
The investigation showed that the allegation was unfounded.
unfounded
/ʌnˈfaʊndɪd/ · un-FOUND-idadjective
Not supported by facts, evidence, or a sound basis.
Use unfounded to express this relationship precisely: not supported by facts, evidence, or a sound basis.
What unfounded Really Means
The word becomes easier to use when its closely related senses are separated and compared.
2
Attributive or predicative use
Use this adjective before a suitable noun or after a linking verb such as be or seem.
Example
Her concern was understandable but ultimately unfounded.
3
Analytical distinction
Choose it when this exact descriptive quality matters; a related word may overlap without conveying the same trait.
Example
Researchers rejected the unfounded claim because no data supported it.
Use unfounded Naturally
Notice how the surrounding noun or clause reveals the exact shade of meaning.
The investigation showed that the allegation was unfounded.
Her concern was understandable but ultimately unfounded.
Researchers rejected the unfounded claim because no data supported it.
Precision Matters
Unfounded overlaps with several common words, but each carries a different emphasis.
unfounded
vs.Means not supported by facts, evidence, or a sound basis.
conjecture
Means a tentative conclusion based on incomplete evidence.
unfounded
vs.Means not supported by facts, evidence, or a sound basis.
empirical
Means based on observation, measurement, or experience rather than theory alone.
unfounded
vs.Means not supported by facts, evidence, or a sound basis.
incontrovertible
Means impossible to deny or dispute because the evidence is decisive.
unfounded
vs.Means not supported by facts, evidence, or a sound basis.
spurious
Means false, invalid, or not genuine despite appearing plausible.
Test unfounded in Context
The accusation lacks factual or evidential support.
1
Once the complete records were examined, the accusation proved ___: no transaction supported it.