Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
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Synonyms for arbitrary
adj whimsical, chanceAntonyms for arbitrary
- consistent
- definite
- dependable
- logical
- reasonable
- regular
- reliable
- sensible
- steady
- unchanging
- circumspect
- democratic
- rational
- reasoned
- supported
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
autocratic
adjective. holding power exclusively
capricious
adjective. given to sudden behavior change
- any way the wind blows
- arbitrary
- blowing hot and cold
- careless
- changeful
- contrary
- crotchety
- effervescent
- erratic
- every which way
- fanciful
- fickle
- fitful
- flaky
- flighty
- freakish
- gaga
- helter-skelter
- humorsome
- impulsive
- inconstant
- kinky
- lubricious
- mercurial
- moody
- mutable
- notional
- odd
- picky
- punchy
- queer
- quirky
- temperamental
- ticklish
- unpredictable
- unreasonable
- unstable
- up and down
- vagarious
- variable
- volatile
- wayward
- whimsical
- yo-yo
dictatorial
adjective. tyrannical, authoritarian
dogmatic
adjective. dictatorial, opinionated
- arbitrary
- arrogant
- assertive
- bigoted
- bullheaded
- categorical
- cocksure
- confident
- definite
- despotic
- determined
- dictative
- doctrinaire
- domineering
- downright
- egotistical
- emphatic
- fanatical
- fascistic
- formal
- high and mighty
- imperious
- intolerant
- magisterial
- narrow-minded
- obdurate
- obstinate
- one-sided
- overbearing
- peremptory
- pigheaded
- prejudiced
- stiff-necked
- stubborn
- tenacious
- tyrannical
- unequivocal
- wrong-headed
erratic
adjective. unpredictable; wandering
- aberrant
- abnormal
- anomalous
- arbitrary
- bizarre
- capricious
- changeable
- desultory
- devious
- dicey
- directionless
- dubious
- eccentric
- fitful
- flaky
- fluctuant
- idiosyncratic
- iffy
- incalculable
- inconsistent
- inconstant
- irregular
- meandering
- mercurial
- nomadic
- oddball
- peculiar
- planetary
- rambling
- roving
- shifting
- spasmodic
- strange
- stray
- uncertain
- undirected
- unnatural
- unreliable
- unstable
- unusual
- vagarious
- variable
- volatile
- wayward
- weird
- whimsical
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.