from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Required by the current fashion or custom; socially obligatory.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Necessary according to etiquette, protocol or fashion.

from the GNU version of the Collaborative International Dictionary of English

  • According to strictness (of etiquette, rule, or the like); obligatory; strictly required.

from The Century Dictionary and Cyclopedia

  • n. Strictly required, as by etiquette, usage, rule, etc.; essential; imperative: as, full dress is de rigueur.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. required by etiquette or usage or fashion


French : de, of + rigueur, rigor, strictness.
(American Heritage® Dictionary of the English Language, Fourth Edition)
French de rigueur ("required"), from de ("of") + rigueur ("rigour/rigor"). (Wiktionary)


Sorry, no example sentences found.


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  • That's helpful, Mercy! I could never remember 1) what it meant or 2) how to spell it.
    ETA: Sorry for getting your name wrong. For some reason I keep reading it as Mary.

    June 28, 2008

  • French expression that literally means "of rigor" or "of strictness", comparable to "the done thing", a standard

    June 28, 2008

  • I often hear this word misused. People use it to mean de jour

    August 25, 2007