Difference between Insufficient and Unable

INSUFFICIENT vs UNABLE: ADJECTIVE

Not sufficient; inadequate.
Not sufficient; not enough; inadequate to any need, use, or purpose.
Wanting in strength, power, ability, capacity, or skill; incompetent; incapable; unfit.
Not sufficient.
Of a quantity not able to fulfill a need or requirement

(usually followed by `to') not having the necessary means or skill or know-how
Lacking in power or forcefulness
Lacking mental or physical capability or efficiency; incompetent.
Not susceptible to action or treatment.
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 able; lacking a certain ability.
(usually followed by `to') lacking necessary physical or mental ability
Lacking the necessary power, authority, or means; not able; incapable.

Not sufficient; lacking in what is necessary or required; deficient in amount, force, or fitness; inadequate; incompetent: as, insufficient provision or protection; insufficient motives.

Adequate, Sufficient, Shy, Too little, Lean, Light, Short, Low, Depleted, Skimpy, Poor, Scarce, Scant, Deficient, Inadequate

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

Adequate, Sufficient, Too little, Shy, Lean, Light, Short, Low, Depleted, Skimpy, Poor, Scarce, Scant, Deficient, Inadequate

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

Offers with insufficient information are liable to rejection.
Insufficient number of arguments or no entry found.
Insufficient attributes were given to create an object.
Mere knowledge of likelihood is legally insufficient proof.
Bank and the amount of interest was insufficient.
If there are insufficient facts in the affidavit there may be insufficient evidence for the Court to come to the desired finding.
If we return a postdated item because of insufficient funds in your Account, you will be subject to the insufficient funds penalty.
TKis causes insufficient voltage at motor induction and results in excessive output current but insufficient output torque.
Evidence was insufficient if there were no relevant trials or data were insufficient.
An insufficient sacrifice could not justify those who suffer from insufficient righteousness.