Difference between Deficient and Lacking

DEFICIENT vs LACKING: NOUN

Inadequate in amount or degree
Of a quantity not able to fulfill a need or requirement
Lacking an essential quality or element.
Inadequate in amount or degree; insufficient.
Falling short of some prescribed norm
See under Abundant.
Lacking something essential; often construed with in.
Insufficient or inadequate in amount.
Wanting, to make up completeness; wanting, as regards a requirement; not sufficient; inadequate; defective; imperfect; incomplete; lacking

Lacking; wanting; incomplete.
Defective; imperfect; inadequate: as, deficient strength.
Not having a full or adequate supply: as, the country is deficient in the means of carrying on war.

Nonstandard, Short, Light, Lean, Scant, Low, Scarce, Skimpy, Depleted, Inferior, Poor, Substandard, Insufficient, Lacking, Inadequate

Inexistent, Sans, Poor, Absence, Failing, Flawed, Insufficient, Devoid, Bereft, Wanting, Missing, Absent, Nonexistent, Inadequate, Deficient

Nonstandard, Short, Light, Lean, Scant, Low, Scarce, Skimpy, Depleted, Inferior, Poor, Substandard, Insufficient, Lacking, Inadequate

Inexistent, Sans, Poor, Absence, Failing, Flawed, Insufficient, Devoid, Bereft, Wanting, Missing, Absent, Nonexistent, Inadequate, Deficient

Toryanskis did not provide deficient performance in mitigation.
Do not use respirators in oxygen deficient environments.
It means we are deficient in bicarbonate and the more deficient we get in bicarbonate, the more acidic we become and acid burns.
Some governments are deficient in both these qualities; most governments are deficient in the first.
Some governments are deficient in both these qualities: Most governments are deficient in the first.
Individuals applying for WIOA enrollment using the basic skills deficient priority of service must provide documentation to verify they are basic skills deficient.
Grantee shall purchase Deficient Quantities from Grantor by paying Grantor the Deficient Quantity Charge.
Critically deficient: Performance that is critically deficient and in need ofimmediate remedial attention.
Deficient precipitation parameterization: Do not assimilate observations where the model is deficient.
The divisors of a pefect or deficient number is deficient.

But what if your Scrum experience is lacking?
However, available data on both groups are lacking.
Intel release lacking support for the Classic environment.
Biggs found the investigative file lacking in information.
Physical accessibility and accommodations tend to be lacking.
Hence, an established, unifying definition is still lacking.
Few men are lacking in capacity, but they fail because they are lacking in application.
If anything is lacking at the outset, every effort will be made to establish what is lacking before trial.
Additionally, failure to pay taxes may result in the company lacking good standing and therefore lacking capacity to sue.
Worn, six bindings lacking paper labels, one lacking paper covering on spine, foxing throughout.