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View synonyms for

random

[ ran-duhm ]

adjective

  1. proceeding, made, or occurring without definite aim, reason, or pattern:

    the random selection of numbers.

    Synonyms: , ,

  2. Statistics. of or characterizing a process of selection in which each item of a set has an equal probability of being chosen.
  3. Building Trades.
    1. (of building materials) lacking uniformity of dimensions:

      random shingles.

    2. (of ashlar) laid without continuous courses.
    3. constructed or applied without regularity:

      random bond.

  4. Slang.
    1. unknown, unidentified, or suspiciously out of place:

      A couple of random guys showed up at the party.

    2. odd or unpredictable, often in an amusing way:

      my totally random life.



noun

  1. something that is random, or a random state or condition:

    different statistical methods used to estimate randoms.

  2. Slang.
    1. a person or thing that is unknown, unidentified, or suspiciously out of place.
    2. a person or thing that is odd or unpredictable.
  3. Chiefly British. bank 3( def 7b ).

adverb

  1. Building Trades. without uniformity:

    random-sized slates.

random

/ ˈæԻə /

adjective

  1. lacking any definite plan or prearranged order; haphazard

    a random selection

  2. statistics
    1. having a value which cannot be determined but only described probabilistically

      a random variable

    2. chosen without regard to any characteristics of the individual members of the population so that each has an equal chance of being selected

      random sampling

  3. informal.
    (of a person) unknown

    some random guy waiting for a bus

“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

noun

  1. at random
    in a purposeless fashion; not following any prearranged order
“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

random

  1. Relating to a type of circumstance or event that is described by a probability distribution.
  2. Relating to an event in which all outcomes are equally likely, as in the testing of a blood sample for the presence of a substance.
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Derived Forms

  • ˈԻdzԱ, noun
  • ˈԻdz, adverb
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Other Word Forms

  • ·dz· adverb
  • ·dz·Ա noun
  • ԴDz··dz adjective
  • non··dz·Ա noun
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Word History and Origins

Origin of random1

First recorded in 1275–1325; Middle English raundon, random, from Old French randon, derivative of randir “to gallop,” from Germanic
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Word History and Origins

Origin of random1

C14: from Old French randon , from randir to gallop, of Germanic origin; compare Old High German rinnan to run
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Idioms and Phrases

Idioms
  1. at random, without definite aim, purpose, method, or adherence to a prior arrangement; in a haphazard way:

    Contestants were chosen at random from the studio audience.

More idioms and phrases containing random

see at random .
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Example Sentences

Examples have not been reviewed.

Escanuela landed in the target group — the fortunate half — of the random clinical trial.

From

The false positives came from urine drug tests given to prisoners undergoing treatment for drug addiction, and were not part of the random drug tests that inmates could face when they’re suspected of drug use.

From

On Monday, Mrs Justice Lambert gave a brief outline of the trial to the initial batch of 25 jurors before they were whittled down by random ballot to the final 12.

From

The “Right Now” video is a classic of the era: a bunch of random clips overlaid with slogans about oil companies and unprotected sex.

From

But he called the whole ordeal “kind of random.”

From

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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