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90s Slang You Should Know


[soo-pur-floo-uh s] /sʊˈpɜr flu əs/
being more than is sufficient or required; excessive.
unnecessary or needless.
Obsolete. possessing or spending more than enough or necessary; extravagant.
Origin of superfluous
late Middle English
1400-50; late Middle English < Latin superfluus, equivalent to super- super- + flu- (stem of fluere to flow) + -us -ous
Related forms
superfluously, adverb
superfluousness, noun
unsuperfluous, adjective
unsuperfluously, adverb
unsuperfluousness, noun
1. extra; redundant. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for superfluous
Contemporary Examples
Historical Examples
  • If so it is pressed home and the superfluous slip is removed.

    The Potter's Craft Charles F. Binns
  • Of course, under the circumstances a personal encounter is superfluous.

    Iole Robert W. Chambers
  • It would be superfluous to speak of Miss Tree's merit in these characters.

  • They both felt instinctively that greetings were superfluous.

    The Arbiter Lady F. E. E. Bell
  • To linger over this strange method of feeding is superfluous after what I have said about the Anthrax.

    The Life of the Fly J. Henri Fabre
British Dictionary definitions for superfluous


exceeding what is sufficient or required
not necessary or relevant; uncalled-for
(obsolete) extravagant in expenditure or oversupplied with possessions
Derived Forms
superfluously, adverb
superfluousness, noun
Word Origin
C15: from Latin superfluus overflowing, from super- + fluere to flow
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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Contemporary definitions for superfluous

unnecessary; uncalled-for; wasteful

Word Origin

Latin super- + fluere 'to flow''s 21st Century Lexicon
Copyright © 2003-2014, LLC
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Word Origin and History for superfluous

early 15c. (earlier superflue, late 14c.), from Latin superfluus "unnecessary," literally "overflowing," from superfluere "to overflow," from super "over" (see super-) + fluere "to flow" (see fluent).

Online Etymology Dictionary, © 2010 Douglas Harper
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