The general has made an unwarranted assumption about shared knowledge.
Many of our religious difficulties are merely deductions from unwarranted assumptions.
That might have been an unwarranted assumption, but it was not important to the mission.
Too many times I have watched able judges find facts that were not facts and make unwarranted assumptions.
"I mean, sir, that you are making a series of unwarranted assumptions."
I think it would be wise if we try not to make unwarranted assumptions.
That's an unwarranted assumption - for all college teachers are in a position of academic authority.
That doesn't mean you should make unwarranted assumptions.
Where the decision from the House of Lords was made on an unwarranted assumption.
"The Fed may prefer the short and sweet approach in order to keep the market from making any unwarranted assumptions."