These statements are completely unfounded, and I am surprised you didn't fully check them before allowing the ad to be published.

However, these claims were proved to be completely unfounded.

Many fears about the new bill will prove completely unfounded.

I know I've got a reputation, but it's completely unfounded.

Then he makes an interesting admission: "all of the rumors keeping me grounded/ I never said they were completely unfounded."

To suggest I don't care about my patients is offensive and completely unfounded.

The men's concerns about crime did not turn out to be completely unfounded.

There was that ring of utter confidence again - completely unfounded.

That the deliberate targeting of wild dogs is completely unfounded.

It goes without saying that their assumptions about Southerners proved to be completely unfounded.