Synonyms of random

random

adjective

ˈran-dəm 

as in scattered

lacking a definite plan, purpose, or pattern

since we were new in town, our choice of a vet for our dog was entirely random

Synonyms & Similar Words

• scattered
• arbitrary
• erratic
• stray
• accidental
• sporadic
• haphazard
• lucky
• aimless
• odd
• casual
• contingent
• desultory
• chance
• irregular
• hit-or-miss
• slapdash
• inadvertent
• helter-skelter
• incidental
• unplanned
• unintentional
• catch-as-catch-can
• fortuitous
• unintended
• spot
• unpremeditated
• shotgun
• unconsidered
• indiscriminate
• unsystematic
• purposeless
• undirected
• directionless
• scattershot
• disorganized
• fluky
• chancy
• disorderly
• undiscriminating
• objectless
• unselective

Antonyms & Near Antonyms

• regular
• systematic
• regular
• orderly
• constant
• continuous
• fixed
• organized
• stable
• steady
• nonrandom
• methodical
• established
• arranged
• even
• set
• systematized
• planned
• aware
• deliberate
• conscious
• thoughtful
• purposeful
• ordered
• managed
• willful
• orchestrated

Synonym Chooser

How is the word random distinct from other similar adjectives?

The words casual and haphazard are common synonyms of random. While all three words mean "determined by accident rather than design," random stresses lack of definite aim, fixed goal, or regular procedure.

a random selection of books

When is casual a more appropriate choice than random?

While in some cases nearly identical to random, casual suggests working or acting without deliberation, intention, or purpose.

a casual collector

When is it sensible to use haphazard instead of random?

Although the words haphazard and random have much in common, haphazard applies to what is done without regard for regularity or fitness or ultimate consequence.

a haphazard collection of rocks

Example Sentences

Recent Examples of random

Their v2 version of their protease, which incorporated some of the random mutations, was 30 times more active than the original design it was based on. — ArsTechnica, 14 Oct. 2026

The experiments showed that the collective patterns could remain stable despite random disturbances. — Neetika Walter, Interesting Engineering, 14 Oct. 2026

Elsewhere, seemingly random lines accented peepers or were drawn down the middle of a mouth. — Jennifer Weil, Footwear News, 13 Oct. 2026

American Horror Story is on a generational run this season, bringing back beloved characters from the show’s past 12 installments and throwing them together in somewhat random configurations that still never fail to please me. — Emma Specter, Vogue, 13 Oct. 2026

Phrases Containing random

• at random