Difference between Improbable and Unlikely

IMPROBABLE vs UNLIKELY: NOUN

Having a probability to low to inspire belief
Too improbable to admit of belief
Unlikely to take place or be true.
Not probable; unlikely to be true; not to be expected under the circumstances or in the usual course of events.
Not likely to be true.
Not likely to happen.
Having a probability too low to inspire belief
Not likely to be true or to occur or to have occurred

Not probable; not likely to be true; not to be expected under the circumstances of the case.

In an unlikely manner; with no or little likelihood; improbably.
Not calculated to inspire liking or affection; not likable or lovable.
Not holding out a prospect of success or of a desired result; likely to fail; unpromising.
Such as cannot be reasonably expected; improbable: as, an unlikely event.

Probable, Unseemly, Impossible, Dubious, Unthinkable, Plausible, Supposed, Marvellous, Tall, Marvelous, Incredible, Unbelievable, Unconvincing, Unlikely, Implausible

Impossible, Reluctant, Plausible, Inconceivable, Doubtful, Likely, Outside, Remote, Last, Unbelievable, Supposed, Unconvincing, Farfetched, Implausible, Improbable

Probable, Unseemly, Impossible, Dubious, Unthinkable, Plausible, Supposed, Marvellous, Tall, Marvelous, Incredible, Unbelievable, Unconvincing, Unlikely, Implausible

Impossible, Reluctant, Plausible, Inconceivable, Doubtful, Likely, Outside, Remote, Last, Unbelievable, Supposed, Unconvincing, Farfetched, Implausible, Improbable

The nontrained SOC was used on improbable trials.
This scenario is also very improbable in practice.
Is there anything improbable or unreasonable in this?
Jews, this account is by no means improbable.
Her hair was an improbable shade of gold.
Arizona this year has clearly become highly improbable.
This is not an improbable account; for Dr.
The contingency we have not considered seriously looks strange; what looks strange is thought improbable; what is improbable need not be considered seriously.
This stunt makes nearly impossible opportunities to make friends merely improbable, improbable opportunities probable, and probable opportunities outright certain.
Unsuited: improbable Poor: improbable Unsuited: improbable Poor: improbable Poor: improbable Poor: improbable Poor: improbable Unsuited: improbable Unsuited: improbable Poor: improbable Poor: improbab

Obviously, in my case it is EXTREMELY unlikely.
John Mark might not be unlikely at all.
Spain but I think this one is unlikely.
Discountable effects are those extremely unlikely to occur.
NBA comeback may seem unlikely at this point.
Russia investigation even though his election seemed unlikely.
It indicates the null hypothesis is very unlikely.
Just as people who borrow murder mysteries are unlikely to be murderers, so those seeking information about terrorism are unlikely to be terrorists.
When looking for solutions to problems they are unlikely to arbitrarily rule out any possibilities, even if they may seem unlikely to others.
Responses can be: very likely, somewhat likely, neither likely or unlikely, somewhat unlikely and very unlikely.