Difference between Unlikely and Immensely

UNLIKELY vs IMMENSELY: NOUN

Such as cannot be reasonably expected; improbable: as, an unlikely event.
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.

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

Unbelievably, Exceedingly, Profoundly, Extraordinarily, Terribly, Very, Massively, Extremely, Incredibly, Greatly, Hugely, Immeasurably, Enormously, Tremendously, Vastly

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

Highly, Considerably, Unbelievably, Exceedingly, Extraordinarily, Terribly, Very, Massively, Extremely, Incredibly, Greatly, Hugely, Immeasurably, Tremendously, Vastly

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.

European Union outpost in the region immensely significant.
They are immensely charming and therefore quite popular.
Happy birthday baby boy, we love you immensely.
Oculeth made himself present by being immensely useful.
Great piece of writing with immensely informative contents!
Colleges within universities vary immensely in their responsibilities.
Cricut Maker and this has helped me immensely.
Those prayers have been immensely helpful to us.
He was immensely popular in his home state.
And it was immensely, immensely powerful and sad, but also meaningful to talk to people and really ask them that question.