Dizionario Polacco - Inglese

niezasadny in inglese:

That's a completely unfounded rumor.

The CEO is trying to quash these unfounded rumors about a merger.

The allegations were totally unfounded

unfounded claim, petition

It appears to be unfounded most of the time

Your worries are completely unfounded.

I hope that my fears will prove to be unfounded.

unfounded allegations/rumours