- The definition of superfluous is something that is more than needed or unnecessary.
An example of superfluous is a buying a stuffed animal for a child who already has too many stuffed animals.
- being more than is needed, useful, or wanted; surplus; excessive
- not needed; unnecessary; irrelevant: a superfluous remark
- Obsolete extravagant; prodigal
Origin: L superfluus from superfluere, to overflow: see super- and amp; fluctuate
Used by arrangement with John Wiley & Sons, Inc.
Origin: Middle English, from Old French superflueux, from Latin superfluus, from superfluere, to overflow : super-, super- + fluere, to flow; see bhleu- in Indo-European roots.
- su·perˈflu·ous·ly adverb
- su·perˈflu·ous·ness noun