Difference between Unable and Able

UNABLE vs ABLE: NOUN

(usually followed by `to') lacking necessary physical or mental ability
Not able; lacking a certain ability.
Not able; not having sufficient strength, means, knowledge, skill, or the like; impotent; weak; helpless; incapable; -- now usually followed by an infinitive or an adverbial phrase.
Not susceptible to action or treatment.
Lacking mental or physical capability or efficiency; incompetent.
Lacking the necessary power, authority, or means; not able; incapable.
Lacking in power or forcefulness
(usually followed by `to') not having the necessary means or skill or know-how

Have the skills and qualifications to do things well
(usually followed by `to') having the necessary means or skill or know-how or authority to do something
Having inherent physical or mental ability or capacity
Having a strong healthy body
Having sufficient power or resources to accomplish something.
Especially capable or proficient.
Fit; adapted; suitable.
Having sufficient power, strength, force, skill, means, or resources of any kind to accomplish the object; possessed of qualifications rendering competent for some end; competent; qualified; capable
Specially: Having intellectual qualifications, or strong mental powers; showing ability or skill; talented; clever; powerful
Legally qualified; possessed of legal competence.
Susceptible to action or treatment.

To enable.
To warrant or answer for.
Having power or means sufficient; qualified; competent: as, a man able to perform military service; a child is not able to reason on abstract subjects.
Having strong or unusual powers of mind, or intellectual qualifications: as, an able minister.
In an absolute sense: Vigorous; active.
Legally entitled or authorized; having the requisite legal qualification: as, an illegitimate son is not able to take by inheritance.

Helpless, Incapacitated, Unfit, Unsuccessful, Not, Insufficient, Powerless, Impossible, Failed, Able, Not able, Ineffectual, Incapable, Ineffective, Impotent

Enable, Allow, Ready, Enabled, Willing, Could, Ability, Can, Allowed, Unable, Able bodied, Capable, Competent, Healthy, Fit

Helpless, Incapacitated, Unfit, Unsuccessful, Not, Insufficient, Powerless, Impossible, Failed, Able, Not able, Ineffectual, Incapable, Ineffective, Impotent

Enable, Allow, Ready, Enabled, Willing, Could, Ability, Can, Allowed, Unable, Able bodied, Capable, Competent, Healthy, Fit

Our Virtual Assistant may be able to help.
Be able to determine and implement decontamination procedures.
You are also able to test your Schema.
Are you able to assist me in this.
We will be able to learn from him.
New clients you were able to win business with and how you were able to do this.
We were able to make bracelets with the names but had to use all sorts and was not able to make a consistent pattern.
Universal soldier must be able to pick the locks, at least on medium level and he should be able to hack basic terminals.
Instead, with some extra planning and considerations, you should be able to able to fly comfortably.
Will parents be able to manage whether their children are able to use Real ID?