Difference between Unwise and Foolish

UNWISE vs FOOLISH: ADJECTIVE

Devoid of good sense or judgment
Having or revealing stupidity
Lacking or exhibiting a lack of good sense or judgment; silly.
Capable of arousing laughter; absurd or ridiculous.
Embarrassed; abashed.
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.
Insignificant; trivial.

Not wise; Lacking wisdom or judgment; foolish; indiscreet: as, an unwise man; unwise kings.
Not dictated by wisdom; not adapted to the desired end; injudicious; imprudent: as, unwise measures; unwise delay.

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.

Hasty, Stupid, Irrational, Risky, Reckless, Prudent, Misguided, Illogical, Inadvisable, Irresponsible, Imprudent, Foolhardy, Inexpedient, Impolitic, Foolish

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

Hasty, Stupid, Irrational, Risky, Reckless, Prudent, Misguided, Illogical, Inadvisable, Irresponsible, Imprudent, Foolhardy, Inexpedient, Impolitic, Foolish

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

This diffusion of responsibility is unsound and unwise.
But doing so is unwise for several reasons.
It is unwise to make education too cheap.
Unwise people live for temporal fulfillment and pleasure.
Jumping in without a firm background is unwise.
It is unwise and unkind to compel withdrawal.
Not including it is, in short, strategically unwise.
He did some unwise things, it is true.
She is being most unwise to ignore it!
Communities unwise for any rulers disturb such arrangements; especially unwise to neglect organised have yet old Village represent their Madras, Bombay, Punjab.

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.