Difference between Preposterous and Foolish

PREPOSTEROUS vs FOOLISH: ADJECTIVE

Contrary to nature, reason, or common sense; absurd. : foolish.
Having that first which ought to be last; inverted in order.
Contrary to nature or reason; not adapted to the end; utterly and glaringly foolish; unreasonably absurd; perverted.
Absurd, or contrary to common sense.
Incongruous;inviting ridicule
Completely devoid of wisdom or good sense

Devoid of good sense or judgment
Having or revealing stupidity
Lacking or exhibiting a lack of good sense or judgment; silly.
Embarrassed; abashed.
Insignificant; trivial.
Marked with, or exhibiting, folly; void of understanding; weak in intellect; without judgment or discretion; silly; unwise.
Such as a fool would do; proceeding from weakness of mind or silliness; exhibiting a want of judgment or discretion.
Absurd; ridiculous; despicable; contemptible.
Lacking good sense or judgement; unwise.
Resembling or characteristic of a fool.
Capable of arousing laughter; absurd or ridiculous.

Having that last which ought to be first; reversed in order or arrangement; inverted.
Foolish; ridiculous; stupid; absurd.
Synonyms and Silly, Foolish, etc. (see absurd), monstrous, crazy, mad, wild, ludicrous. See foolish.
So unreasonable as to invite derision

Synonyms Silly, Foolish (see absurd); shallow, brainless, harebrained, simple.
Slight; insignificant.
Denoting or indicative of folly.
Ridiculous; contemptible.
Proceeding from or prompted by folly; exhibiting a want of discretion or discrimination; silly; vain; trifling.
Like a fool; manifesting folly; deficient in understanding, sense, or discretion; weak in intellect or judgment; unwise.

Farcical, Fallacious, Silly, Idiotic, Bizarre, Risible, Illogical, Outrageous, Laughable, Derisory, Foolish, Nonsensical, Ridiculous, Absurd, Ludicrous

Insane, Nonsensical, Unreasonable, Harebrained, Fatuous, Fool, Preposterous, Absurd, Asinine, Ridiculous, Misguided, Ludicrous, Silly, Stupid, Unwise

Farcical, Fallacious, Silly, Idiotic, Bizarre, Risible, Illogical, Outrageous, Laughable, Derisory, Foolish, Nonsensical, Ridiculous, Absurd, Ludicrous

Insane, Nonsensical, Unreasonable, Harebrained, Fatuous, Fool, Preposterous, Absurd, Asinine, Ridiculous, Misguided, Ludicrous, Silly, Stupid, Unwise

It is completely preposterous to just "start" school.
Gay is preposterous as a term describing them.
Department of English at Berkshire School is preposterous.
ED visit is preposterous and just plain wrong.
The Executive Order is preposterous in its irrationality.
Preposterous Pets: Lions, Bison and Bears, Oh My!
Wilkite movement, regarded as both preposterous and dangerous.
At one level, the sixth petition seems preposterous.
Preposterous as history, preposterous as drama, the show succeeds magnificently as bad television.
It travels through preposterous canyons on an even more preposterous trail.

Anyone not using the AMEX deal is foolish.
MASTER: That would be very foolish of you.
Are Economic Giants Penny Wise But Pound Foolish?
Baloo knows it; I know it; the Pack know it; and even the foolish, foolish deer know.
So, the preaching of the gospel is not foolish, but the question today is: Is there such a thing as foolish preaching?
You looked foolish the last two times you said it for the previous two contracts, and you will look foolish again this time.
Of all the foolish Fears of Humankind, Fear of the Future is by far the most foolish.
There are no foolish trades, there are only foolish people.
Young and Foolish Young and foolish Why is it wrong to be Young and foolish?
That foolish idea may not be so foolish after all.

What is a preposterous claim that would be a year ago?
Is Schatz buying the Missouri congressman's 'preposterous and ridiculous' revolt?