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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.

With Pirelli imposing a 25-lap safety limit on the tyres, that meant anyone who pitted at that time was locked into a rigid strategy with a second stop on lap 32.

From BBC

"We found that the sticky tags can actually make the mtDNA less flexible and more rigid," Chen said.

From Science Daily

But his views on marriage and family are so rigid that if people followed his prescriptions, most women would be unable to hold jobs outside of the home.

From Salon

Supporters of the Fed’s current approach counter that rigid formulas can’t capture an economy in flux, and central bank officials have said as much.

From Barron's

Her roles in the 1950s diminished in plausibility, and Crawford’s acting stiffened into rigid self-presentation.

From The Wall Street Journal