Deficient synonyms

dĭ-fĭsh'ənt

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Part of speech:

lacking
Incomplete
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insufficient
The definition of insufficient is that there is not enough of something.
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crude
Lacking concealing elements.
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unfinished (related)
Not having received special processing, such as dyeing or varnishing:
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inadequate (related)
Not adequate; unequal to the purpose; insufficient; deficient; as, inadequate resources, power, conceptions, representations, etc.
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substandard
Failing to meet a standard; below standard.
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meager
Poor, deficient or inferior in amount, quality or extent; paltry; scanty; inadequate; unsatisfying.
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imperfect
Not perfect.
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sketchy
(Slang, of a person) Suspected of taking part in illicit or dishonorable dealings.
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wanting (related)
Absent; lacking; missing
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scanty
Insufficient; not enough
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defective
Of a product or process, that it contains an error or flaw affecting performance; of a pleading or document, that it contains a shortcoming potentially causing its invalidity or leading to its dismissal.
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immature
(Geol.) Worn down only slightly by erosion, as a land surface having steeply entrenched stream valleys that lack well-developed flood plains
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incomplete
Not complete; not filled up; not finished; not having all its parts, or not having them all adjusted; imperfect; defective.
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dysgenic
Of or relating to, or causing degeneration or deterioration in offspring
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under
Located or situated on a lower level or beneath something else:
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meagre
(Mineralogy) Dry and harsh to the touch (e.g., as chalk).
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mediocre
Of ordinary or undistinguished quality.
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minus
Ranking on the lower end of a designated scale:
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rudimentary
Incompletely or imperfectly developed
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dearth
Dearth is defined as a lack or small supply of something.
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deficiency
A lack or shortage, especially of something essential to health:
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foible
The definition of foible is a small character flaw.
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handicap
Something that prevents, hampers, or hinders.
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impediment
The definition of an impediment is an obstacle or something that prevents action.
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imperfection
(Uncountable) Those qualities or features that are imperfect; the characteristic, state, or quality of being imperfect.
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inadequacy
A shortage of required material.
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lacuna
The definition of a lacuna is a space where something is missing.
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manque
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ullage
In an industrial setting, the empty space in a tank, such as for fuel
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weakness
(Countable) An inadequate quality; fault
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enough (antonym)
As much or as many as necessary, desirable, or tolerable; sufficient
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ample (antonym)
The definition of ample is you have enough of something to meet your needs, and perhaps even some left over.
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excessive (antonym)
The definition of excessive is something or someone that goes beyond what is normal, acceptable or necessary.
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superfluous (antonym)
Being more than is needed, useful, or wanted; surplus; excessive
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faultless (antonym)
Without fault; free from defect or error.
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flawless (antonym)
Being entirely without flaw or imperfection.
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sufficient (antonym)
Equal to the end proposed; adequate to wants; enough; ample; competent; as,
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perfect (antonym)
Without fault or mistake; thoroughly skilled or talented.
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adequate (antonym)
Barely satisfactory; acceptable but not remarkable
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scarce
The definition of scarce is a situation where there is too little of something or where something exists only in very small numbers.
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short
Extending or traveling not far or not far enough:
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excess (related)
More than is normal, necessary or specified.
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skimpy
Small or inadequate; not generous, or of a garment, very small, light, or revealing.
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satisfactory (antonym)
Giving satisfaction sufficient to meet a demand or requirement; adequate.
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shy
Not having a sufficient or specified amount, as of money:
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better (related)
Healthier or more fit than before:
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big (related)
Filled up; brimming over:
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inferior
Low or lower in quality, value, or estimation:
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unreached
Not reached.
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anaemic (related)
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Find another word for deficient. In this page you can discover 52 synonyms, antonyms, idiomatic expressions, and related words for deficient, like: lacking, insufficient, crude, unfinished, inadequate, substandard, meager, imperfect, sketchy, wanting and scanty.
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Deficient Sentence Examples

  • They are both deficient in solidity and in permanent interest.

  • Fortunately Frederick had never been deficient in courage.

  • Although deficient in technical training, he handled with great skill the difficult problems which were presented by the Civil War.

  • The organisms do not carry on their work in soils deficient in air; hence the process is checked in water-logged soils.

  • Boots were worn out, greatcoats deficient, transport almost unattainable and, according to modern ideas, the army would have been considered incapable of action.

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Words near deficient in the Thesaurus