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See also: rígid



From Middle English rigide, from Latin rigidus (stiff), from rigeō (I am stiff). Compare rigor. Merged with Middle English rigged, rygged, rugged (upright like a spine, rigid, literally ridged), from ridge +‎ -ed.


  • (file)
  • IPA(key): /ˈɹɪdʒɪd/
  • Rhymes: -ɪdʒɪd


rigid (comparative rigider or more rigid, superlative rigidest or most rigid)

  1. Stiff, rather than flexible.
    Synonym: inflexible
    Antonym: flexible
  2. Fixed, rather than moving.
    • 2011, David Foster Wallace, The Pale King,Penguin Books, page 5:
      A sunflower, four more, one bowed, and horses in the distance standing rigid and still as toys.
    Antonym: moving
  3. Rigorous and unbending.
  4. Uncompromising.
    Antonym: compromising

Derived terms[edit]

Related terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.


Construction of USS Shenandoah, a rigid (sense 1), showing her internal framework.

rigid (plural rigids)

English Wikipedia has an article on:
  1. (aviation) An airship whose shape is maintained solely by an internal and/or external rigid structural framework, without using internal gas pressure to stiffen the vehicle (the lifting gas is at atmospheric pressure); typically also equipped with multiple redundant gasbags, unlike other types of airship.
    The rigid could reach the greatest sizes and speeds of any airship, but was expensive to build and bulky to store. Rigids fell out of favor after the R101 and Hindenburg disasters made the type seem unsafe to the travelling public.
  2. A bicycle with no suspension system.







Coordinate terms[edit]



Old Irish[edit]

Etymology 1[edit]

From Proto-Celtic *regeti (to stretch), from Proto-Indo-European *h₃reǵ- (to straighten, right oneself).[1]


rigid (conjunct ·reig or ·raig)

  1. to stretch, to distend
Derived terms[edit]


  • Middle Irish: rigid
    • Irish: righ (to stretch)

Etymology 2[edit]

From Proto-Celtic *rigeti (bind), from Proto-Indo-European *reyǵ- (to bind, reach).[2]


rigid (conjunct ·rig)

  1. to rule, direct
    • c. 700, Críth Gablach, published in Críth Gablach (1941, Dublin: Stationery Office), edited by Daniel Anthony Binchy, §30
      Rí, cid ara n-eperr? Arindí riges cumachtu(i) chun[d]rig fora túatha(i).
      The king, why do they call him that? Because he wields [exerts, MacNeill] the power of control [correction, MacNeill] over his people [in a túath].
    • c. 800-840, Orthanach, A Chóicid chóem Chairpri chrúaid from the Book of Leinster, LL line 6094
      Reraig Herind ardrí Molt[...]
      The High King [Ailill] Molt ruled over Ireland...
Derived terms[edit]



  1. ^ Matasović, Ranko (2009) , “*reg-o-”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, page 308
  2. ^ Matasović, Ranko (2009) , “*rig-o-”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, pages 312-313

Further reading[edit]



From French rigide.


rigid m or n (feminine singular rigidă, masculine plural rigizi, feminine and neuter plural rigide)

  1. rigid