Having no strong foundation; not based on solid reasons or facts. / Not having been founded or instituted. / (obsolete) Bottomless.

Not found.

(rare) To disestablish; to undo the founding of.

To dismiss a criminal charge as unfounded.

Third-person singular simple present indicative form of unfound

present participle of unfound

Not having foundered.

In an unfounded way; without basis.

The state or condition of being unfounded.