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Audio » Dictionary » D » Defense System ... Deform


Pronunciation (US): 

 Dictionary entry overview: What does deficient mean? 

DEFICIENT (adjective)
  The adjective DEFICIENT has 3 senses:

1. inadequate in amount or degree
2. of a quantity not able to fulfill a need or requirement
3. falling short of some prescribed norm

  Familiarity information: DEFICIENT used as an adjective is uncommon.

 Dictionary entry details 

DEFICIENT (adjective)

Sense 1deficient [BACK TO TOP]


Inadequate in amount or degree


deficient; lacking; wanting

Context examples:

a deficient education / deficient in common sense / lacking in stamina / tested and found wanting


inadequate ((sometimes followed by 'to') not meeting the requirements especially of a task)

Sense 2deficient [BACK TO TOP]


Of a quantity not able to fulfill a need or requirement


insufficient; deficient

Context example:

insufficient funds


shy (short)

scarce (not enough; hard to find)

light; scant; short (less than the correct or legal or full amount often deliberately so)

lean; skimpy (containing little excess)

inadequate; poor; short (not sufficient to meet a need)

depleted; low (no longer sufficient)

too little (not enough)


meager; meagerly; meagre; scrimpy; stingy (deficient in amount or quality or extent)


quantity (an adequate or large amount)

Sense 3deficient [BACK TO TOP]


Falling short of some prescribed norm


substandard; deficient; inferior

Context example:

substandard housing


nonstandard (varying from or not adhering to a standard)

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 DEFICIENT: related words searches 

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