# rigid
## English
### Etymology

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.

### Pronunciation

* Audio (US):(file)
* IPA: /ˈɹɪd͡ʒ.ɪd/
* Rhymes: -ɪdʒɪd

### Adjective

rigid (comparative rigider or more rigid, superlative rigidest or most rigid)
* Stiff, rather than flexible.
    Synonyms: inflexible; see also Thesaurus:stiff
    Antonyms: flexible; see also Thesaurus:flexible
* Having inflexible thoughts, opinions, or beliefs.
* Fixed, rather than moving.
    Synonyms: static, stuck, unmovable; see also Thesaurus:immobile
    Antonyms: moving; see also Thesaurus:movable
** 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.
* Rigorous and unbending.
* Uncompromising.
    Synonyms: staunch, unyielding; see also Thesaurus:obstinate
    Antonyms: compromising, transigent

#### Derived terms

* multirigid
* nonrigid
* overrigid
* rigid body
* rigid body dynamics
* rigidify
* rigidity
* rigidize
* rigid-leaf poison
* rigidly
* rigidness
* rigidulous
* semirigid
* subrigid
* superrigid
* unrigid

#### Related terms

* rigor
* rigorous
* rigour

#### Translations

    The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

### Noun

rigid (plural rigids)
* (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.
* A bicycle with no suspension system.

#### Synonyms

(airship):
* Zeppelin (broad sense)

#### Hypernyms

(airship):
* dirigible

#### Hyponyms

(airship):
* Zeppelin (narrow sense)

#### Coordinate terms

(airship):
* nonrigid
* semirigid

### References

* “rigid”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
* William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “rigid”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.

### Anagrams

* Iğdır

## Old Irish
### Pronunciation

* IPA: [ˈr͈ʲiɣʲiðʲ]

### Etymology 1

From Proto-Celtic *regeti (“to extend, stretch, straighten”), from Proto-Indo-European *h₃reǵ- (“to straighten, stretch, rule”).

#### Verb

rigid (conjunct ·reig or ·raig)
* to stretch, to distend
** c. 800–825, Diarmait, Milan Glosses on the Psalms, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 7–483, Ml. 20$^a$23
    rechti .i. ro·recht ho methi ⁊ inmairidistended, i.e. it has been distended by fat and obesity.

##### Derived terms

* ad·eirrig
* ar·fuirig
* as·éirig
* at·reig
* con·érig
* do·dúrig
* do·érig
* do·rig
* fo·rig

##### Descendants

* Middle Irish: rigid
** Irish: righ (“to stretch”)

### Etymology 2

From Proto-Celtic *rigeti (“bind”), from Proto-Indo-European *Hreyǵ- (“to bind, reach”).

#### Verb

rigid (conjunct ·rig)
* 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

* con·rig

##### Descendants

* Middle Irish: rigid

### References

* 1 2 Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “1 rigid”, in eDIL: Electronic Dictionary of the Irish Language
* ↑ Matasović, Ranko (2009) “*reg-o-”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, page 308
* ↑ Matasović, Ranko (2009) “*rig-o- ‘stretch’”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, pages 312–13
* ↑ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “2 rigid”, in eDIL: Electronic Dictionary of the Irish Language
* ↑ Matasović, Ranko (2009) “*rig-o- ‘bind’”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, pages 311–12

## Romanian
### Etymology

Borrowed from French rigide.

### Adjective

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

#### Related terms

* rigiditate