American Heritage® Dictionary of the English Language, Fourth
Edition - adj. Lacking an essential quality or element:
deficient in common sense. - adj. Inadequate in amount or
degree; insufficient: a deficient education. Century Dictionary
and Cyclopedia - 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. - adj. Lacking something essential;
often construed with in. - adj. Insufficient or inadequate in
amount. GNU Webster's 1913 - adj. Wanting, to make up
completeness; wanting, as regards a requirement; not sufficient;
inadequate; defective; imperfect; incomplete; lacking. - adj. of
a quantity not able to fulfill a need or requirement - adj.
falling short of some prescribed norm - adj. inadequate in
amount or degree - From Latin deficiens, present participle of
deficere ("to lack, fail, be wanting"); see defect. (Wiktionary)
- Latin dēficiēns, dēficient-, present partici