[ soo-pur-floo-uhs ]
/ sʊˈpɜr flu əs /


being more than is sufficient or required; excessive.
unnecessary or needless.
Obsolete. possessing or spending more than enough or necessary; extravagant.

Nearby words

  1. superfine,
  2. superfix,
  3. superfluid,
  4. superfluidity,
  5. superfluity,
  6. superfly,
  7. superfood,
  8. superfortress,
  9. superfund,
  10. superfuse

Origin of superfluous

1400–50; late Middle English < Latin superfluus, equivalent to super- super- + flu- (stem of fluere to flow) + -us -ous

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for superfluous

British Dictionary definitions for superfluous


/ (suːˈpɜːflʊəs) /


exceeding what is sufficient or required
not necessary or relevant; uncalled-for
obsolete extravagant in expenditure or oversupplied with possessions
Derived Formssuperfluously, adverbsuperfluousness, noun

Word Origin for superfluous

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

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