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rigid - 5 dictionary results
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rig⋅id

  [rij-id]
Use rigid in a Sentence
–adjective
1. stiff or unyielding; not pliant or flexible; hard: a rigid strip of metal.
2. firmly fixed or set.
3. inflexible, strict, or severe: a rigid disciplinarian; rigid rules of social behavior.
4. exacting; thorough; rigorous: a rigid examination.
5. so as to meet precise standards; stringent: lenses ground to rigid specifications.
6. Mechanics. of, pertaining to, or noting a body in which the distance between any pair of points remains fixed under all forces; having infinite values for its shear modulus, bulk modulus, and Young's modulus.
7. Aeronautics.
a. (of an airship or dirigible) having a form maintained by a stiff, unyielding structure contained within the envelope.
b. pertaining to a helicopter rotor that is held fixedly at its root.
Origin:
1530–40; < L rigidus, equiv. to rig(ēre) to be stiff, stiffen + -idus -id 4

Related forms:
ri⋅gid⋅i⋅ty, rig⋅id⋅ness, noun
rig⋅id⋅ly, adverb

Synonyms:
1. unbending, firm, inflexible. 2. immovable, static. 3. austere, stern, unyielding. See strict. 4, 5. demanding.

Antonyms:
1. elastic. 3. lax.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To rigid
rig·id   (rĭj'ĭd)   
adj.  
  1. Not flexible or pliant; stiff.
  2. Not moving; fixed.
  3. Marked by a lack of flexibility; rigorous and exacting: "We have watered down a rigid training . . . until we now have an educational diet in many of our public high schools that nourishes neither the classes nor the masses" (Agnes Meyer).
  4. Scrupulously maintained or performed: rigid discipline. See Synonyms at stiff.

[Middle English rigide, from Latin rigidus, from rigēre, to be stiff; see reig- in Indo-European roots.]
rig'id·ly adv., rig'id·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Rigid

Rig"id\, a. [L. rigidus, fr. rigere to be stiff or numb: cf. F. rigide. Cf. Rigor. ]

1. Firm; stiff; unyielding; not pliant; not flexible.

Upright beams innumerable Of rigid spears. --Milton.

2. Hence, not lax or indulgent; severe; inflexible; strict; as, a rigid father or master; rigid discipline; rigid criticism; a rigid sentence.

The more rigid order of principles in religion and government. --Hawthorne.

Syn: Stiff; unpliant; inflexible; unyielding; strict; exact; severe; austere; stern; rigorous; unmitigated.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : rigid
Spanish: rígido,
German: starr,
Japanese: 硬い
More Translations »

rigid 
1538, from L. rigidus "hard, stiff, rough, severe," from rigere "be stiff," from PIE *reig- "stretch (tight), bind tightly, make fast" (cf. O.Ir. riag "torture," M.H.G. ric "band, string"), related to L. frigus "cold," Gk. rhigos "frost, cold."
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: rig·id
Pronunciation: 'rij-&d
Function: adjective
: deficient in or devoid of flexibility : characterized by stiffness<rigid muscles>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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