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[suh-fish-uh nt] /səˈfɪʃ ənt/
adequate for the purpose; enough:
sufficient proof; sufficient protection.
Logic. (of a condition) such that its existence leads to the occurrence of a given event or the existence of a given thing.
Compare necessary (def 4c).
Archaic. competent.
Origin of sufficient
1350-1400; Middle English < Latin sufficient- (stem of sufficiēns), present participle of sufficere to suffice, equivalent to suf- suf- + -fici-, present stem of -ficere, combining form of facere to make, do1 + -ent- -ent
Related forms
sufficiently, adverb
oversufficient, adjective
oversufficiently, adverb
presufficient, adjective
presufficiently, adverb
quasi-sufficient, adjective
quasi-sufficiently, adverb
supersufficient, adjective
supersufficiently, adverb
1. meager, scant, inadequate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for sufficient
Contemporary Examples
Historical Examples
  • Let it be sufficient if I say that it was at one of these dinners or luncheons.

    In Africa John T. McCutcheon
  • But I have not heard anything said sufficient to provoke an answer.

  • "Yet the grace was to be sufficient always," Kathie said, with some hesitation.

    Kathie's Soldiers Amanda Minnie Douglas
  • We have a great deal of evidence, but not sufficient evidence to convict.

    Jack O' Judgment Edgar Wallace
  • But, on the other hand, his ideas of a sufficient income were not extravagant.

British Dictionary definitions for sufficient


enough to meet a need or purpose; adequate
(logic) (of a condition) assuring the truth of a statement; requiring but not necessarily required by some other state of affairs Compare necessary (sense 3e)
(archaic) competent; capable
a sufficient quantity
Derived Forms
sufficiently, adverb
Word Origin
C14: from Latin sufficiens supplying the needs of, from sufficere to suffice
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sufficient

early 14c., from Old French sufficient, from Latin sufficiens, present participle of sufficere (see suffice).

Online Etymology Dictionary, © 2010 Douglas Harper
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