- 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
Synonyms for rigidSee more synonyms for on Thesaurus.com
Antonyms for rigid
Related Words for rigiduncompromising, stringent, austere, harsh, solid, hard-line, definite, unyielding, inflexible, intransigent, stern, rigorous, adamant, fixed, exact, bullheaded, changeless, determined, firm, hard
Examples from the Web for rigid
Contemporary Examples of rigid
Bound together by mutual distrust, both sides end up lashing themselves to the mast of rigid law.
Doctors are prohibited from doing what a patient needs by rigid practice guidelines.
Beyond that, how will China evolve its rigid Internet policy?China’s Internet Is Freer Than You Think
December 27, 2014
The man behind the desk is a fictional character—a ferocious patriot exposing the limits of rigid ideology.The End of Truthiness: Stephen Colbert’s Sublime Finale
December 19, 2014
But on an A380 or 787 Dreamliner flying long haul, you can be trapped, rigid, in that seat for half a day.Flying Coach Is the New Hell: How Airlines Engineer You Out of Room
November 25, 2014
Historical Examples of rigid
They were hard-featured men, sallow of complexion, rigid in their looks.
The rigid lines of black that crossed it were bars—prison bars.
He pointed to the rigid form of the dead man, lying there so very near them.
The moral tension, which had held her hopeless and rigid, gave way.Tiverton Tales
Almamen marked his emotion with an eye and lip of rigid composure.Leila, Complete
- not bending; physically inflexible or stiffa rigid piece of plastic
- unbending; rigorously strict; severerigid rules
- completely or excessivelythe lecture bored him rigid
Word Origin for 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.