rigid

[ rij-id ]

/ ˈrɪdʒ ɪd /

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adjective

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.

Aeronautics.

(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.

Nearby words

rightward, rightwardly, rightwards, righty, rigi, rigid, rigid designator, rigid frame, rigid motion, rigidify, rigidity

Origin of rigid

1530–40; < Latin rigidus, equivalent to rig(ēre) to be stiff, stiffen + -idus -id⁴

SYNONYMS FOR rigid

1 unbending, firm, inflexible.

2 immovable, static.

3 austere, stern, unyielding. See strict.

4, 5 demanding.

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ANTONYMS FOR rigid

1 elastic.

3 lax.

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Related forms

ri·gid·i·ty, rig·id·ness, nounrig·id·ly, adverbo·ver·rig·id, adjectiveo·ver·rig·id·ly, adverb

o·ver·rig·id·ness, nouno·ver·ri·gid·i·ty, nounsub·rig·id, adjectivesub·rig·id·ly, adverbsub·rig·id·ness, nounsub·ri·gid·i·ty, nounun·rig·id, adjectiveun·rig·id·ly, adverbun·rig·id·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rigidness

Still she maintained a rigidness of feature, and an intrepidity of soul that excited both sorrow and admiration.
Caxton's Book: A Collection of Essays, Poems, Tales, and Sketches.|W. H. Rhodes
It is true that the rigidness of her own home had not prevented her from making a hasty and unsuitable marriage.
A Book of Sibyls|Anne Thackeray (Mrs. Richmond Ritchie)
He did not despise comfort or decoration, pretend to a pose of rigidness; he simply hadn't the time for it himself.
When It Was Dark|Guy Thorne
He smiled now as he thought of the rigidness of his boyish theology.
The Trumpeter Swan|Temple Bailey

This rigidness of some men killed in battle I have often seen.
Hugh Wynne, Free Quaker|S. Weir Mitchell

British Dictionary definitions for rigidness

rigid

/ (ˈrɪdʒɪd) /

adjective

not bending; physically inflexible or stiffa rigid piece of plastic

unbending; rigorously strict; severerigid rules

adverb

completely or excessivelythe lecture bored him rigid

Derived Forms

rigidly, adverbrigidity or rigidness, noun

Word Origin for rigid

C16: from Latin rigidus, from rigēre to be stiff

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rigid

adjective

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Nearby words

Origin of rigid

SYNONYMS FOR rigid

ANTONYMS FOR rigid

Related forms

Examples from the Web for rigidness

British Dictionary definitions for rigidness

rigid

adjective

adverb

Derived Forms

Word Origin for rigid