Questions about example sentences with, and the definition and usage of "Unable"

A: -not able to do something
-cannot do something
E.x: I'm unable to tell the difference

A: It means you can’t do something

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A: Unable is when someone can not do something. They don't have the ability to do something. :) Hope that helps!

A: I am unable to come to work today, because I am sick.
He was unable to lift the desk because it was too heavy for him.
We will be unable to come to your party, because we will be out of town that day.

A: "Unable" is something you can't do but maybe someone else could
Same with "incapable"

"Impossible" is generally hard and can not be done easily

A: No difference in meaning. With unable though the verb after it has to be in the infinitive (the "to-" form) while the verb after can't is simply in its present singular form (verb form that does not end in s)

I am unable /to swim/.
I can't /swim/.

A: > unable: lacking the skill to do something
> disable: put out of action

> she was unable to do her daily chores because she was busy.
> he disabled his phone.

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