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Synonyms for mercurial
adj flighty, temperamental- changeable
- effervescent
- erratic
- impulsive
- resilient
- unpredictable
- volatile
- blowing hot and cold
- bubbleheaded
- buoyant
- capricious
- elastic
- expansive
- fickle
- flaky
- flip
- fluctuating
- gaga
- gay
- inconstant
- irregular
- irrepressible
- lighthearted
- lively
- lubricious
- mad
- mobile
- movable
- quicksilver
- short-fuse
- spirited
- sprightly
- ticklish
- unstable
- up-and-down
- variable
- yo-yo
Antonyms for mercurial
- certain
- constant
- predictable
- reliable
- stable
- steady
- sure
- unchanging
- calm
- tranquil
- unchangeable
- unperturbable
- unvarying
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
bipolar
adjective. marked by opposite extremes
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
changeable
adjective. erratic
- agitated
- capricious
- changeful
- commutative
- convertible
- fickle
- fitful
- flighty
- fluctuating
- fluid
- impulsive
- inconstant
- indecisive
- irregular
- irresolute
- irresponsible
- kaleidoscopic
- mercurial
- mobile
- movable
- mutable
- permutable
- protean
- restless
- reversible
- revocable
- shifting
- skittish
- spasmodic
- transformable
- transitional
- uncertain
- unpredictable
- unreliable
- unsettled
- unstable
- unsteady
- vacillating
- vagrant
- variable
- variant
- varying
- versatile
- volatile
- wavering
- whimsical
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
excitable
adjective. easily upset or inspired
- agitable
- alarmable
- demonstrative
- edgy
- emotional
- enthusiastic
- fidgety
- fierce
- fiery
- galvanic
- hasty
- high-strung
- hot-headed
- hot-tempered
- hysterical
- impatient
- impetuous
- impulsive
- inflammable
- intolerant
- irascible
- mercurial
- moody
- nervous
- neurotic
- overzealous
- passionate
- peevish
- quick
- quick-tempered
- rash
- reckless
- restless
- sensitive
- short fused
- skittish
- susceptible
- temperamental
- testy
- touchy
- uncontrolled
- uneasy
- vehement
- violent
- volatile
- volcanic
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.