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rigid

American  
[rij-id] / ˈrɪdʒ ɪd /

adjective

  1. stiff or unyielding; not pliant or flexible; hard.

    a rigid strip of metal.

    Synonyms:
    inflexible, firm, unbending
    Antonyms:
    elastic
  2. firmly fixed or set.

    Synonyms:
    static, immovable
  3. inflexible, strict, or severe.

    a rigid disciplinarian; rigid rules of social behavior.

    Synonyms:
    unyielding, stern, austere
    Antonyms:
    lax
  4. exacting; thorough; rigorous.

    a rigid examination.

    Synonyms:
    demanding
  5. so as to meet precise standards; stringent.

    lenses ground to rigid specifications.

    Synonyms:
    demanding
  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.

    1. (of an airship or dirigible) having a form maintained by a stiff, unyielding structure contained within the envelope.

    2. pertaining to a helicopter rotor that is held fixedly at its root.


rigid British  
/ ˈrɪdʒɪd /

adjective

  1. not bending; physically inflexible or stiff

    a rigid piece of plastic

  2. unbending; rigorously strict; severe

    rigid rules

"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

adverb

  1. completely or excessively

    the lecture bored him rigid

"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

Usage

What does rigid mean? Rigid means stiff and inflexible. It can be used in both literal and figurative ways.For example, a material like plastic might be described as rigid if it does not bend or bend easily. A person might be described as rigid if they are very strict and unwilling to bend the rules. Rules themselves can also be described as rigid if they are very strict or rigorous, as in The boarding school had a rigid set of rules designed to keep students in line. When used to describe a person or their personality as inflexible, rigid is almost always used negatively, as in Try not to be so rigid—you have to learn to go with the flow sometimes.The related noun rigidity refers to the state or quality of being rigid in both literal and figurative senses.Example: When using heavy acrylic paints, It’s best to paint on a rigid canvas so the paint won’t bleed and the canvas will hold its shape over time.

Related Words

See strict.

Other Word Forms

  • overrigid adjective
  • overrigidity noun
  • overrigidly adverb
  • overrigidness noun
  • rigidity noun
  • rigidly adverb
  • rigidness noun
  • subrigid adjective
  • subrigidity noun
  • subrigidly adverb
  • subrigidness noun
  • unrigid adjective
  • unrigidly adverb
  • unrigidness noun

Etymology

Origin of rigid

First recorded in 1530–40; from Latin rigidus, equivalent to rig(ēre) “to be stiff, stiffen” + -idus -id 4

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Not a manifesto, not a rigid curriculum — just 26 tiny habits, discoveries and delights that accumulate into a richer cooking life.

From Salon

Seasoned diplomats rehearsed rigid protocols to prevent misunderstandings between two nuclear powers poised like scorpions in a jar.

From The Wall Street Journal

In his holiday special, he treats the feast as both a love letter to its Catholic, working-class roots and a gentle rebellion against the idea that it needs to be rigid or intimidating.

From Salon

Other analysts cautioned about worrying too much about the large number of dropouts, writing that the rigid structure of the trial doesn’t reflect how the drug might be used in clinical practice.

From Barron's

Follow Kubick’s lead, and treat the classic recipe as a blank canvas rather than a rigid formula.

From Salon