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in-constant
adjective as in incompatible
Strong match
Weak matches
adjective as in inconsistent
Strongest matches
adjective as in inconstant
adjective as in irregular
Strongest matches
Weak matches
- aimless
- casual
- changeable
- designless
- desultory
- disconnected
- discontinuous
- fitful
- fluctuating
- fragmentary
- haphazard
- hit-or-miss
- inconstant
- indiscriminate
- infrequent
- nonuniform
- occasional
- out of order
- patchy
- purposeless
- recurrent
- shaky
- spasmodic
- uncertain
- unconsidered
- unmethodical
- unpunctual
- unsettled
- unsteady
- unsystematic
- up and down
adjective as in loose
adjective as in mercurial
Strongest matches
adjective as in restless
Strongest matches
adjective as in slippery
adjective as in ticklish
adjective as in uncertain
Strongest matches
adjective as in undependable
adjective as in unfaithful
adjective as in unpredictable
adjective as in unreliable
Strongest matches
Strong match
adjective as in unsettled
Strongest matches
adjective as in unstable/unsteady
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dizzy
- dubious
- erratic
- fickle
- fitful
- fluctuating
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- moving
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- suspect
- teetering
- temperamental
- ticklish
- tricky
- uncertain
- unpredictable
- unsettled
- untrustworthy
- vacillating
- variable
- volatile
- wavering
- weaving
- wiggly
- wobbly
adjective as in untrue
Strongest matches
adjective as in variable
adjective as in varying
Strongest matches
Strong matches
adjective as in volatile
adjective as in wanton
Strongest matches
adjective as in wayward
Weak matches
- aberrant
- arbitrary
- balky
- changeable
- contumacious
- cross-grained
- disobedient
- disorderly
- fickle
- flighty
- fractious
- froward
- immoral
- inconstant
- incorrigible
- insubordinate
- intractable
- mulish
- obdurate
- obstinate
- ornery
- perverse
- refractory
- restive
- self-indulgent
- self-willed
- stubborn
- uncompliant
- undependable
- ungovernable
- unpredictable
- unstable
- variable
- whimsical
- willful
adjective as in changing
Strongest matches
Strong matches
Weak matches
adjective as in unstable
Strongest matches
adjective as in capricious
Strongest matches
adjective as in mutable
adjective as in unsteady
adjective as in vacillating
adjective as in changeable
Strongest matches
Weak matches
- agitated
- commutative
- convertible
- fitful
- flighty
- fluid
- impulsive
- inconstant
- indecisive
- irregular
- irresolute
- irresponsible
- kaleidoscopic
- mobile
- movable
- permutable
- restless
- reversible
- revocable
- skittish
- spasmodic
- transformable
- transitional
- uncertain
- unreliable
- unsteady
- vacillating
- vagrant
- variable
- variant
- versatile
- wavering
- whimsical
adjective as in gaga
adjective as in supererogative
Weak matches
- capricious
- changeable
- devil-may-care
- extravagant
- fanciful
- fickle
- fitful
- fluctuating
- free
- frivolous
- gratuitous
- heedless
- hot-and-cold
- immoderate
- inconstant
- intemperate
- lavish
- outrageous
- prodigal
- profuse
- rash
- reckless
- spendthrift
- spoiled
- supererogatory
- thriftless
- uncalled-for
- unfettered
- unreserved
- unrestrained
- up and down
- variable
- volatile
- wasteful
- whimsical
- wild
adjective as in supererogatory
Weak matches
- capricious
- changeable
- devil-may-care
- extravagant
- fanciful
- fickle
- fitful
- fluctuating
- free
- frivolous
- gratuitous
- heedless
- hot-and-cold
- immoderate
- inconstant
- intemperate
- lavish
- outrageous
- prodigal
- profuse
- rash
- reckless
- spendthrift
- spoiled
- supererogative
- thriftless
- uncalled-for
- unfettered
- unreserved
- unrestrained
- up and down
- variable
- volatile
- wasteful
- whimsical
- wild
adjective as in tottering
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dubious
- erratic
- fickle
- fitful
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- temperamental
- ticklish
- tottery
- tricky
- uncertain
- unpredictable
- unsteady
- untrustworthy
- variable
- volatile
- weak
- wiggly
- wobbly
adjective as in tottery
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dizzy
- dubious
- erratic
- fickle
- fitful
- fluctuating
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- moving
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- suspect
- teetering
- temperamental
- ticklish
- tottering
- tricky
- uncertain
- unpredictable
- unsettled
- unsteady
- untrustworthy
- vacillating
- variable
- volatile
- wavering
- weak
- weaving
- wiggly
- wobbly
adjective as in truthless
Weak matches
- counterfactual
- deceitful
- deceptive
- delusive
- deviant
- disloyal
- dissembling
- distorted
- erroneous
- faithless
- fallacious
- false
- fictitious
- forsworn
- hollow
- imprecise
- inaccurate
- inconstant
- incorrect
- inexact
- lying
- meretricious
- misleading
- mistaken
- off
- out of line
- perfidious
- perjured
- prevaricating
- recreant
- sham
- specious
- spurious
- traitorous
- treacherous
- two-faced
- unfaithful
- unloyal
- unsound
- untrue
- untrustworthy
- untruthful
- wide
- wrong
adjective as in unquiet
Weak matches
- active
- agitated
- antsy
- anxious
- bundle of nerves
- bustling
- changeable
- disturbed
- edgy
- fidgeting
- fidgety
- fitful
- footloose
- fretful
- hurried
- ill at ease
- inconstant
- intermittent
- irresolute
- itchy
- jumpy
- nervous
- nomadic
- on edge
- perturbed
- restive
- roving
- sleepless
- spasmodic
- strung-out
- tossing and turning
- transient
- troubled
- turbulent
- uneasy
- unpeaceful
- unrestful
- unruly
- unsettled
- unstable
- unsteady
- wandering
- worried
adjective as in corrupt
adjective as in erratic
Strongest matches
adjective as in faithless
Weak matches
adjective as in fickle
adjective as in fitful
adjective as in flighty
Strongest matches
adjective as in giddy
Weak matches
- brainless
- bubbleheaded
- capricious
- careless
- changeable
- changeful
- ditzy
- empty-headed
- erratic
- fickle
- flighty
- flustered
- frivolous
- heedless
- inconstant
- irresolute
- irresponsible
- lightheaded
- punchy
- reckless
- reeling
- scatterbrained
- slaphappy
- swimming
- thoughtless
- unbalanced
- unsettled
- unstable
- unsteady
- vacillating
- volatile
- whimsical
- whirling
- wild
adjective as in incompatible
Strong match
Weak matches
adjective as in inconsistent
Strongest matches
adjective as in inconstant
adjective as in irregular
Strongest matches
Weak matches
- aimless
- casual
- changeable
- designless
- desultory
- disconnected
- discontinuous
- fitful
- fluctuating
- fragmentary
- haphazard
- hit-or-miss
- inconstant
- indiscriminate
- infrequent
- nonuniform
- occasional
- out of order
- patchy
- purposeless
- recurrent
- shaky
- spasmodic
- uncertain
- unconsidered
- unmethodical
- unpunctual
- unsettled
- unsteady
- unsystematic
- up and down
adjective as in loose
adjective as in mercurial
Strongest matches
adjective as in restless
Strongest matches
adjective as in slippery
adjective as in ticklish
adjective as in uncertain
Strongest matches
adjective as in undependable
adjective as in unfaithful
adjective as in unpredictable
adjective as in unreliable
Strongest matches
Strong match
adjective as in unsettled
Strongest matches
adjective as in unstable/unsteady
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dizzy
- dubious
- erratic
- fickle
- fitful
- fluctuating
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- moving
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- suspect
- teetering
- temperamental
- ticklish
- tricky
- uncertain
- unpredictable
- unsettled
- untrustworthy
- vacillating
- variable
- volatile
- wavering
- weaving
- wiggly
- wobbly
adjective as in untrue
Strongest matches
adjective as in variable
adjective as in varying
Strongest matches
Strong matches
adjective as in volatile
adjective as in wanton
Strongest matches
adjective as in wayward
Weak matches
- aberrant
- arbitrary
- balky
- changeable
- contumacious
- cross-grained
- disobedient
- disorderly
- fickle
- flighty
- fractious
- froward
- immoral
- inconstant
- incorrigible
- insubordinate
- intractable
- mulish
- obdurate
- obstinate
- ornery
- perverse
- refractory
- restive
- self-indulgent
- self-willed
- stubborn
- uncompliant
- undependable
- ungovernable
- unpredictable
- unstable
- variable
- whimsical
- willful
adjective as in changing
Strongest matches
Strong matches
Weak matches
adjective as in unstable
Strongest matches
adjective as in capricious
Strongest matches
adjective as in mutable
adjective as in unsteady
adjective as in vacillating
adjective as in changeable
Strongest matches
Weak matches
- agitated
- commutative
- convertible
- fitful
- flighty
- fluid
- impulsive
- inconstant
- indecisive
- irregular
- irresolute
- irresponsible
- kaleidoscopic
- mobile
- movable
- permutable
- restless
- reversible
- revocable
- skittish
- spasmodic
- transformable
- transitional
- uncertain
- unreliable
- unsteady
- vacillating
- vagrant
- variable
- variant
- versatile
- wavering
- whimsical
adjective as in gaga
adjective as in supererogative
Weak matches
- capricious
- changeable
- devil-may-care
- extravagant
- fanciful
- fickle
- fitful
- fluctuating
- free
- frivolous
- gratuitous
- heedless
- hot-and-cold
- immoderate
- inconstant
- intemperate
- lavish
- outrageous
- prodigal
- profuse
- rash
- reckless
- spendthrift
- spoiled
- supererogatory
- thriftless
- uncalled-for
- unfettered
- unreserved
- unrestrained
- up and down
- variable
- volatile
- wasteful
- whimsical
- wild
adjective as in supererogatory
Weak matches
- capricious
- changeable
- devil-may-care
- extravagant
- fanciful
- fickle
- fitful
- fluctuating
- free
- frivolous
- gratuitous
- heedless
- hot-and-cold
- immoderate
- inconstant
- intemperate
- lavish
- outrageous
- prodigal
- profuse
- rash
- reckless
- spendthrift
- spoiled
- supererogative
- thriftless
- uncalled-for
- unfettered
- unreserved
- unrestrained
- up and down
- variable
- volatile
- wasteful
- whimsical
- wild
adjective as in tottering
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dubious
- erratic
- fickle
- fitful
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- temperamental
- ticklish
- tottery
- tricky
- uncertain
- unpredictable
- unsteady
- untrustworthy
- variable
- volatile
- weak
- wiggly
- wobbly
adjective as in tottery
Weak matches
- ambiguous
- borderline
- capricious
- changeable
- dizzy
- dubious
- erratic
- fickle
- fitful
- fluctuating
- giddy
- inconsistent
- inconstant
- insecure
- irrational
- lubricious
- mercurial
- mobile
- movable
- moving
- mutable
- not fixed
- precarious
- rickety
- risky
- rocky
- sensitive
- shaky
- shifty
- slippery
- suspect
- teetering
- temperamental
- ticklish
- tottering
- tricky
- uncertain
- unpredictable
- unsettled
- unsteady
- untrustworthy
- vacillating
- variable
- volatile
- wavering
- weak
- weaving
- wiggly
- wobbly
adjective as in truthless
Weak matches
- counterfactual
- deceitful
- deceptive
- delusive
- deviant
- disloyal
- dissembling
- distorted
- erroneous
- faithless
- fallacious
- false
- fictitious
- forsworn
- hollow
- imprecise
- inaccurate
- inconstant
- incorrect
- inexact
- lying
- meretricious
- misleading
- mistaken
- off
- out of line
- perfidious
- perjured
- prevaricating
- recreant
- sham
- specious
- spurious
- traitorous
- treacherous
- two-faced
- unfaithful
- unloyal
- unsound
- untrue
- untrustworthy
- untruthful
- wide
- wrong
adjective as in unquiet
Weak matches
- active
- agitated
- antsy
- anxious
- bundle of nerves
- bustling
- changeable
- disturbed
- edgy
- fidgeting
- fidgety
- fitful
- footloose
- fretful
- hurried
- ill at ease
- inconstant
- intermittent
- irresolute
- itchy
- jumpy
- nervous
- nomadic
- on edge
- perturbed
- restive
- roving
- sleepless
- spasmodic
- strung-out
- tossing and turning
- transient
- troubled
- turbulent
- uneasy
- unpeaceful
- unrestful
- unruly
- unsettled
- unstable
- unsteady
- wandering
- worried
adjective as in corrupt
adjective as in erratic
Strongest matches
adjective as in faithless
Weak matches
adjective as in fickle
adjective as in fitful
adjective as in flighty
Strongest matches
adjective as in giddy
Weak matches
- brainless
- bubbleheaded
- capricious
- careless
- changeable
- changeful
- ditzy
- empty-headed
- erratic
- fickle
- flighty
- flustered
- frivolous
- heedless
- inconstant
- irresolute
- irresponsible
- lightheaded
- punchy
- reckless
- reeling
- scatterbrained
- slaphappy
- swimming
- thoughtless
- unbalanced
- unsettled
- unstable
- unsteady
- vacillating
- volatile
- whimsical
- whirling
- wild
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Synonym of the day
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On this page you'll find 1865 synonyms, antonyms, and words related to in-constant, such as: conflicting, inappropriate, incongruous, inconsistent, irreconcilable, and unsuitable.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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