- stiff or unyielding; not pliant or flexible; hard: a rigid strip of metal.
- firmly fixed or set.
- inflexible, strict, or severe: a rigid disciplinarian; rigid rules of social behavior.
- exacting; thorough; rigorous: a rigid examination.
- so as to meet precise standards; stringent: lenses ground to rigid specifications.
- Mechanics. of, relating 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.
- (of an airship or dirigible) having a form maintained by a stiff, unyielding structure contained within the envelope.
- pertaining to a helicopter rotor that is held fixedly at its root.
Origin of rigid
SynonymsSee more synonyms for on Thesaurus.com
Examples from the Web for rigidity
Here he finds the ground prepared for the anti-semitic attack on rigidity, stubbornness, inflexibility as Jewish qualities.Liberals Need to Learn to Say No
July 10, 2014
That orthodoxy is no different than the rigidity of the football team at school.Smashing Pumpkins Frontman Billy Corgan: What I Learned as a Rock Star
July 17, 2012
A great many surprises must open out in real life as in great fiction, or we descend into the rigidity of myth.This Week’s Hot Reads: June 18, 2012
June 18, 2012
It has since shed much of that rigidity, and the result has been positive.What the U.S. Can Learn From Germany
June 30, 2011
I think a lot of us believe this because we grew up seeing the rigidity of our parents and grandparents, uncles and aunts.Yes, You Can Change People
January 10, 2010
Cody's planes are noted for their neatness, rigidity and smoothness.Flying Machines
W.J. Jackman and Thos. H. Russell
Her face flushed; then it paled and hardened with the rigidity of self-control.The Dominant Strain
Anna Chapin Ray
The bristling mane, so thick and wolfish, fairly quivered in its rigidity.The Hound From The North
The famous—or notorious—de Barral had lost his rigidity now.Chance
In certain cases, however, the instinct loses its rigidity and automatism.The Industries of Animals
- not bending; physically inflexible or stiffa rigid piece of plastic
- unbending; rigorously strict; severerigid rules
- completely or excessivelythe lecture bored him rigid
Word Origin and History for rigidity
1620s, from Latin rigiditas "stiffness," from rigidus (see rigid).
early 15c., from Latin rigidus "hard, stiff, rough, severe," from rigere "be stiff," from PIE *reig- "stretch (tight), bind tightly, make fast" (cf. Old Irish riag "torture," Middle High German ric "band, string"). Related: Rigidly.
- The quality or state of stiffness or inflexibility.rigor
- An aspect of the personality characterized by resistance to change.