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Definitions for Rigid

[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, 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.
[7] 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.
[8] not bending; physically inflexible or stiff a rigid piece of plastic
[9] unbending; rigorously strict; severe rigid rules
[10] completely or excessively the lecture bored him rigid

Words related to Rigid

uncompromising, stringent, austere, harsh, solid, hard-line, definite, unyielding, inflexible, intransigent, stern, rigorous, adamant, fixed, exact, bullheaded, changeless, determined, firm, hard

Words nearby Rigid

rightsize, rightward, 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

Other words from Rigid

ri·gid·i·ty , rig·id·ness , noun
rig·id·ly , adverb
o·ver·rig·id , adjective
o·ver·rig·id·ly , adverb
o·ver·rig·id·ness , noun
o·ver·ri·gid·i·ty , noun
sub·rig·id , adjective
sub·rig·id·ly , adverb
sub·rig·id·ness , noun
sub·ri·gid·i·ty , noun
un·rig·id , adjective
un·rig·id·ly , adverb
un·rig·id·ness , noun

Word origin for Rigid

C16: from Latin rigidus , from rigēre to be stiff

Synonyms for Rigid

adamant, austere, definite, exact, fixed, hard-line, harsh, inflexible, intransigent, rigorous, solid, stern, stringent, uncompromising, unyielding, adamantine, bullheaded, changeless, chiseled, dead set, determined, firm, hard, incompliant, inelastic, inexorable, invariable, locked in, obdurate, set, set in stone, single-minded, static, strait-laced, tough nut to crack, unalterable, unbending, unbreakable, unchanging, undeviating, unmoving, unpermissive, unrelenting