unsubstantiated

Definitions

Not supported or proven by evidence.

Lacking confirmation or verification.

Examples

The journalist was criticized for publishing unsubstantiated rumors about the politician's private life.

The company dismissed the allegations of fraud as completely unsubstantiated and without merit.

Synonyms

unproven unverified baseless groundless unsupported speculative conjectural

Antonyms

proven verified substantiated confirmed validated documented authenticated