Marchman takes it as a given that MLB basing its case on the say-so of a sketchy Floridian drug-dealer is preposterous.
But the idea that he thinks this can just stop there is preposterous, not to say revolting, actually.
It was Romney who doggedly stuck to his game plan—no matter how preposterous he looked.
To call such a scenario preposterous is to call the Internet preposterous for having already achieved that and more.
Neither of these preposterous assertions have a basis in fact and both relied on the hearsay of one source.
Even he saw something funny in the preposterous coup of the half-crowns and the little boys.
It was like a plot in one of his own preposterous melodramas!
But something more indiscreet and preposterous than this, is advanced for our admiration.
He touched the spring of his repeater, to correct this most preposterous clock.
It is preposterous that he should think of it—even to transcend his engines.
1540s, from Latin praeposterus "absurd, contrary to nature, inverted, perverted, in reverse order," literally "before-behind" (cf. topsy-turvy, cart before the horse), from prae "before" + posterus "subsequent." Related: Preposterously; preposterousness.