If these movies existed, then surely whatever measly story was bubbling in my brain was not so preposterous.

NEWYORKER: A Psychotronic Childhood

The whole thing is so preposterous that only someone with a Lewis Carroll-like imagination could have dreamt it up.

FORBES: Magazine Article

Gore's assertions that all is well with our military were so preposterous that they added to his credibility problem.

FORBES: Election Stranger Than Fiction

But sometimes, the perspective is so preposterous, I wonder why I bother.

FORBES: Connect

Yet this report, like so many, adopts a preposterous pretence of precise measurement which immediately arouses suspicion.

BBC: NEWS | Health | Cancer alert for smoking parents

It is preposterous to suggest so.

WHITEHOUSE: Press Briefing

Financial analyst, auditor, pension consultant, lawyer, politician and regulator conflicts of interest have become so commonplace and the corresponding risks so imperceptible, that we have come to accept preposterous scenarios.

FORBES: An End to 401(k)s (February 1, 2002)