The burden of proof is on those addicted to unfounded optimism.
And anyone who would base an opinion on unfounded rumors is not someone you would want as a friend.
Many Republicans voters are terrified by unfounded fears and are swayed by false information.
Drawing attention away from that with petty, unfounded assertions is, with all due respect, childish and destructive.
But the networks keep giving Trump a platform to make these unfounded charges, with varying degrees of pushback from the anchors.
The claim itself is unfounded under the circumstances of his comparison.
I awake suddenly to find that my nightmare has not been unfounded.
I shall have the mournful satisfaction of sacrificing myself utterly to a distrust as absurd as it is unfounded.
Democracy has put an unfounded faith in automatic contrivances.
They were soon satisfied that this supposition was unfounded.