Meaning of DEFICIENT in English

DEFICIENT

— deficiently , adv.

/di fish"euhnt/ , adj.

1. lacking some element or characteristic; defective: deficient in taste.

2. insufficient; inadequate: deficient knowledge.

n.

3. a person who is deficient, esp. one who is mentally defective.

[ 1575-85; deficient- (s. of deficiens, prp. of deficere to fail, run short, lack, weaken), equiv. to de- DE- + fic-, comb. form of facere to make, DO 1 + thematic -i- + -ent- -ENT ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .