Difference between Difficult and Impossible

DIFFICULT vs IMPOSSIBLE: NOUN

Not easy to persuade or convince; stubborn.
Not easy to please, satisfy, or manage.
Not easy to comprehend, solve, or explain.
Not easy to endure; full of hardship or trouble; trying.
Requiring considerable effort or skill; not easy to do or accomplish.
Not easy; requiring great physical or mental effort to accomplish or comprehend or endure
Hard, not easy, requiring much effort
Hard to do or to make; beset with difficulty; attended with labor, trouble, or pains; not easy; arduous.
Hard to manage or to please; not easily wrought upon; austere; stubborn.
Hard to control
Requiring much effort and trouble
Hard to manage, uncooperative, troublesome; eg. said of a person, a horse, etc.

Very difficult to deal with.
Not possible, not able to be done.
An imaginary quantity. See Imaginary.
Not possible; incapable of being done, of existing, etc.; unattainable in the nature of things, or by means at command; insuperably difficult under the circumstances; absurd or impracticable; not feasible.
Extremely difficult to deal with or tolerate.
Unacceptable; intolerable.
Not capable of being accomplished.
Incapable of having existence or of occurring.
Used of persons or their behavior
Totally unlikely
Not capable of occurring or being accomplished or dealt with

Not easy
Synonyms Difficult, Hard, Arduous (see arduous), laborious, toilsome; obscure, knotty.
Hard to understand or solve; perplexing; puzzling: as, a difficult passage in an author; a difficult question or problem.
Hard to persuade or induce; stubborn in yielding; obstinate as to opinion: as, he was difficult to convince.
Hard to please or satisfy; not compliant; unaccommodating; rigid; austere: as, a person of difficult temper.
Hard to do, perform, or overcome; attended with labor, pains, or opposition; laborious: as, a difficult undertaking.
Not easy; requiring or dependent on effort; hard; troublesome; arduous.
To perplex; embarrass.
To make difficult; impede.

Not possible; non-existent or false by necessity.
In law, in a stricter sense, prevented only by the act of God or a public enemy.
Excessively odd; not to have been imagined; such as would not have been thought possible: as, she is a most impossible person; he wears an impossible hat.
(used of persons or their behavior) not acceptable or reasonable

Thorny, Trying, Unenviable, Delicate, Awkward, Rocky, Rough, Troublesome, Problematical, Arduous, Hard, Problematic, Challenging, Tough, Tricky

Insufferable, Unrealizable, Impracticable, Unacceptable, Hopeless, Intolerable, Unworkable, Unimaginable, Unattainable, Unachievable, Unthinkable, Infeasible, Undoable, Unfeasible, Inconceivable

Thorny, Trying, Unenviable, Delicate, Awkward, Rocky, Rough, Troublesome, Problematical, Arduous, Hard, Problematic, Challenging, Tough, Tricky

Insufferable, Unrealizable, Impracticable, Unacceptable, Hopeless, Intolerable, Unworkable, Unimaginable, Unattainable, Unachievable, Unthinkable, Infeasible, Undoable, Unfeasible, Inconceivable

It certainly can make for a difficult marriage.
Find it difficult to get around your bathroom?
Metaphors are more difficult to teach than similes.
Times have been so difficult in recent months.
The use of cryptography is complex and difficult.
Slow and difficult process to retrieve boarding pass.
Calamity player, pure summoner would be insanely difficult.
You are saying it is more difficult, music is more difficult?
Some dailies are more difficult than others, a lot more difficult.
Advancing racial equity is already difficult, but then you add the scope and it becomes more difficult.

They may manipulate employees by setting impossible goals.
And now she must make an impossible choice.
SURREY CHAIRMAN The journey was at times impossible.
Without precise figures, it is impossible to estimate.
It is practically impossible to implement programs independently.
Bathroom door opens in, making wheelchair access impossible.
Therefore living in the UK would be impossible.
It would be impossible fairly to do so.
An important feature: timers that trigger on a certain time are impossible in contracts impossible timers.
Everyone said impossible, they all said it was impossible to get done.