Permit me to apologize for an unwarrantable intrusion, Mr. Kirkwood.
She knew how unwarrantable, how inexcusable a thing she had done.
He was redoubtable, not in virtue of his office, but because of his unwarrantable assumptions.
You mean that it was a great liberty on my part—an unwarrantable liberty?
He rejected the mere possibility of such an unwarrantable intrusion.