unfounded

Definitions

Having no foundation or basis in fact; groundless.

Not supported by evidence or proof.

Examples

The rumors about the company's bankruptcy were completely unfounded.

She dismissed his accusations as entirely unfounded and malicious.

There is no evidence to support such an unfounded claim.

Synonyms

baseless groundless unsubstantiated unjustified unsupported gratuitous invalid

Antonyms

founded justified proven substantiated valid well-grounded supported