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random

random

527 3.4
Happening without a plan and by chance
  • adjective
  • /ˈrændəm/
translation icon : aleatorio
  • We found that random patrols helped the local population to feel safer and to trust us.
  • a random sample
  • a random number
  • a random selection

It happened by some weird random chain of events.

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Examples

  • Parents who decide to home-school do not represent a random assortment of individuals.

    Academic text (2011)
  • And below these two things, the random moment, the random touch.

  • But which direction they line up in may be random, right?

  • So we are in some random place in Brooklyn.

  • If errors are truly random, agreement levels should not vary with this change in the listening context.

    Academic text (2011)
  • It happened by some weird random chain of events.

  • Yeah, Joe has got to let a random person pick the envelope, and no matter how bad it is, he has to do whatever it says inside.

  • The teacher called on arandom student to answer the question.

  • The lottery winners were chosen atrandom from all entries.

  • They decided to take arandom route to explore the city.

Synonyms

spontaneous
vsrandom
187 4.2

Happening naturally without planning or outside cause

is similar in lacking plan but does not require a natural cause
unpredictable
vsrandom
163 4.4

Likely to change suddenly and hard to know in advance

may be unplanned but the key stresses chance governing rather than predictability alone
erratic
vsrandom
94 6.1

Not regular or predictable and likely to change suddenly

is about lack of plan or purpose, not only irregular conduct
casual
vsrandom
50 2.5

Happening by chance and not planned

stresses lack of plan but the key highlights chance as a governing factor
unplanned
vsrandom
25 3.5

Happening by chance without getting ready first

adds that outcomes are often governed by chance rather than only lack of plan
haphazard
vsrandom
16 7.2

No clear order or plan and often messy

is also unplanned but does not imply carelessness in creation
chaotic
vsrandom
  • Specialized
9 7.2

A system where small changes cause very different results that are hard to predict

is a general lack of plan or order, not a technical chaos concept
probabilistic
vsrandom
  • Specialized
6 8.1

Based on how likely something is rather than being certain

applies to ordinary unplanned events, not formal probability models
stochastic
vsrandom
  • Specialized
4 9.9

Having events or results that happen by chance you cannot predict

is less technical and applies to ordinary lack of plan or order
hit-or-miss
vsrandom
  • Informal
3 6.9

Sometimes works well and sometimes fails depending on luck

is similar but can describe any unplanned occurrence, not only luck outcomes
aleatoric
vsrandom
  • Specialized
1 9.9

A work that uses chance to decide parts, for example in music or art

is the general idea of lacking plan, not only artistic chance use
randomized
vsrandom
  • Specialized
1 5.1

Chosen by chance to avoid bias

is about lacking deliberate method or plan rather than intentional chance setup
nonsystematic
vsrandom
6.7

Not arranged according to a plan or regular order

focuses on lack of system while the key stresses chance governance
aleatory
vsrandom
  • Formal
9.9

Unpredictable because it depends on chance

is broader, covering lack of plan as well as chance influence
indeterministic
vsrandom
  • Specialized
9.2

Having no single predictable result because chance affects it

is more about absence of deliberate planning than philosophical unpredictability
unconstructed
vsrandom
6.0

Speech or action that feels natural and not planned

is about absence of plan but may include outcomes governed by chance
chanceful
vsrandom
  • Archaic
8.7

Likely to involve risk or an uncertain result

is about absence of method or plan rather than focusing on risk or danger

Antonyms

117 3.9

Done on purpose and not by accident

35 4.1

Doing things carefully and in an organized way

26 1.0

Arranged before it happens on purpose

1 5.8

Not chosen by chance and having a clear pattern

Idioms

44 2.7

By chance, without any plan or order

Compounds

random sample
  • Specialized
5 3.4

A group of people or things that each has an equal chance of being picked

3 4.3

A device or program that produces numbers that do not follow a pattern

random variable
  • Specialized
2 6.8

A number that can have different values by chance, with a known chance for each value

random sampling
  • Specialized
1 4.0

Selecting people or items so each has an equal chance of being chosen

random walk
  • Specialized
1 7.7

A process where a number changes by random steps, like particle motion or price changes

random access memory
  • Specialized
1 3.7

A fast place in a computer where programs keep data while the computer runs

random memory
  • Specialized
5.7

A part of a computer that stores data for a short time while it runs

9.9

An imaginary being people blame for luck in games and gambling

random-access memory
  • Specialized
3.8

Space inside a computer where programs keep data while running and that is lost when the computer turns off

How Random

chaotic
116 4.7
haphazard
7.0
random
527 3.4
arbitrary
92 6.1
regular
870 1.0
predictable
189 2.5

Surface Forms

random positive

Etymology

Random comes from an old French word randon meaning 'speed' or a sudden move; picture something let go quickly and left to fall where it will. So random today means 'without plan' or 'by chance'.