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- pronunciation:
- dih
fI
sh
 nt
- features:
- Word Combinations (adjective), Word Parts
| part of speech: |
adjective |
| definition 1: |
lacking some essential part, element, substance, or characteristic.
Their diet is deficient in vitamin C.She finds her daughter-in-law deficient in good manners.The struggling nation is rich in natural resources but deficient in infrastructure.With respect to piano skill, I'm sadly deficient.- synonyms:
- lacking, wanting
- antonyms:
- adequate, complete, sufficient
- similar words:
- defective, inadequate, insufficient, poor, short
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| definition 2: |
inadequate in amount or extent.
His knowledge of mathematics is deficient, so he's having difficulty with his physics course.- synonyms:
- inadequate, insufficient, short, wanting
- antonyms:
- adequate, excessive, superfluous
- similar words:
- defective, feeble, ill, incomplete, poor, scarce, sketchy, skimpy, substandard, unsatisfactory
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| related words: |
bad, bare, barren, crude, destitute, devoid, faulty, partial, scant, scanty, shy, slender, tight, weak |
adverb + (adj.)deficient
allegedly,
constitutionally,
currently,
equally,
extremely,
frequently,
fundamentally,
generally,
gravely,
inherently,
intellectually,
mentally,
morally,
nutritionally,
often,
sadly,
seriously,
somehow,
somewhat,
structurally,
unfortunately,
woefully
[See all][See only the most frequent]
(adj.)deficient
+ adverb
functionally
(adj.)deficient
+ noun
acid,
appreciation,
area,
background,
being,
calcium,
communication,
deficiency,
difficulty,
disorder,
element,
enzyme,
function,
hormone,
identity,
infrastructure,
intake,
judgment,
knowledge,
magnesium,
mathematics,
mineral,
niacin,
nutrient,
planning,
preparation,
protein,
respect,
skill,
soil,
solution,
understanding,
virtue,
vitamin
[See all][See only the most frequent]
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| derivation: |
deficiently (adv.) |
The word deficient
contains the following part:
fac, fic, fec, fact, fect
Latin
root
that means make, do
  More about this word part:
This root is also the origin of the suffixes "-fy, -ify, -efy" and "-ification, -efaction".
Example words:
affect, affection, artifice, artificial, benefactor, beneficent, beneficial, benefit, confect, deficient, disaffect, discomfit, effect, efficient, fact, factory, fiction, fictitious, infect, malefactor, manufacture, orifice, proficient, sacrifice, satisfaction, satisfactory, significant, sufficient
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