- ambiguous
- changeable
- erratic
- fickle
- insecure
- irrational
- precarious
- risky
- rocky
- sensitive
- shaky
- slippery
- ticklish
- tricky
- uncertain
- unpredictable
- unsettled
- unsteady
- volatile
- weak
- wobbly
- borderline
- capricious
- dizzy
- dubious
- fitful
- fluctuating
- giddy
- inconsistent
- inconstant
- lubricious
- mercurial
- mobile
- movable
- moving
- mutable
- not fixed
- rickety
- shifty
- suspect
- teetering
- temperamental
- untrustworthy
- vacillating
- variable
- wavering
- weaving
- wiggly
On this page you’ll find 167 synonyms, antonyms, and words related to unstable, such as: ambiguous, changeable, erratic, fickle, insecure, and irrational.
Roget’s 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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How to use unstable in a sentence
Hence Napoleon was driven more and more to trust to the advice of the rash, unstable King of Naples.
NAPOLEON’S MARSHALSR. P. DUNN-PATTISON
To me it is simply a medium, an unstable, oscillating medium of impetuous spiritual energies.
THE CREATORSMAY SINCLAIR
As a jailer he was in close touch with facts and knew by experience how unstable in these days was any man’s power.
THE LIGHT THAT LURESPERCY BREBNER
SYNONYM OF THE DAY
OCTOBER 26, 1985
WORDS RELATED TO UNSTABLE
- 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
- 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
- altering
- alternating
- changeable
- developing
- dynamic
- growing
- inconstant
- irresolute
- mobile
- modifying
- uncertain
- unstable
- unsteady
- wavering
- alarming
- bad
- breakneck
- chancy
- critical
- dangersome
- deadly
- delicate
- dynamite
- exposed
- fatal
- formidable
- hairy
- heavy
- hot
- impending
- impregnable
- insecure
- jeopardous
- loaded
- malignant
- menacing
- mortal
- nasty
- no-go
- on collision course
- parlous
- perilous
- portentous
- precarious
- pressing
- queasy
- risky
- serious
- serpentine
- shaky
- speculative
- terrible
- thorny
- threatening
- ticklish
- touch-and-go
- touchy
- treacherous
- ugly
- unhealthy
- unsafe
- unstable
- urgent
- viperous
- vulnerable
- wicked
- aimless
- chance
- chaotic
- deviating
- erratic
- haphazard
- orderless
- rambling
- unmethodical
- unstable
- unsystematic
- without purpose
- capricious
- changeable
- crazy
- empty-headed
- fatuous
- feather-brained
- fickle
- foolish
- frivolous
- giddy
- harebrained
- heady
- inane
- light-headed
- silly
- skittish
- unstable
Roget’s 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
WiktionaryRate these synonyms:5.0 / 1 vote
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unstableadjective
Synonyms:
instableAntonyms:
stable -
unstableadjective
having a strong tendency to change
Synonyms:
instableAntonyms:
stable -
unstableadjective
fluctuating; not constant
Synonyms:
instableAntonyms:
stable -
unstableadjective
fickle
Synonyms:
instableAntonyms:
stable -
unstableadjective
unpredictable
Synonyms:
instableAntonyms:
stable -
unstableadjective
Readily decompasable
Synonyms:
instableAntonyms:
stable -
unstableadjective
Radioactive, especially with a short half-life
Synonyms:
instableAntonyms:
stable
English Synonyms and AntonymsRate these synonyms:3.0 / 1 vote
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unstable
Uncertain is applied to things that human knowledge can not certainly determine or that human power can not certainly control; precarious originally meant dependent on the will of another, and now, by extension of meaning, dependent on chance or hazard, with manifest unfavorable possibility verging toward probability; as, one holds office by a precarious tenure, or land by a precarious title; the strong man’s hold on life is uncertain, the invalid’s is precarious.
Synonyms:
doubtful, dubious, equivocal, hazardous, insecure, perilous, precarious, risky, unassured, uncertain, unsettled, unsteadyAntonyms:
actual, assured, certain, firm, immutable, incontestable, infallible, real, settled, stable, steady, strong, sure, undeniable, undoubted, unquestionable
Princeton’s WordNetRate these synonyms:3.0 / 1 vote
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unstableadjective
lacking stability or fixity or firmness
«unstable political conditions»; «the tower proved to be unstable in the high wind»; «an unstable world economy»
Synonyms:
unsound, fluid, precarious, mentally illAntonyms:
sane, firm, easy, lasting, stabilised, stabilized, resolute, unreactive, stable, unfluctuating, stabile, steady, unchangeable -
unstableadjective
highly or violently reactive
«sensitive and highly unstable compounds»
Synonyms:
unsound, fluid, precarious, mentally illAntonyms:
stabilized, lasting, firm, stabile, unchangeable, easy, stable, steady, stabilised, resolute, unreactive, sane, unfluctuating -
precarious, unstableadjective
affording no ease or reassurance
«a precarious truce»
Synonyms:
mentally ill, perilous, parlous, precarious, shaky, touch-and-go, unsound, fluidAntonyms:
stabilised, stable, lasting, unchangeable, unfluctuating, stabile, easy, stabilized, unreactive, steady, resolute, sane, firm -
mentally ill, unsound, unstableadjective
suffering from severe mental illness
«of unsound mind»
Synonyms:
mentally ill, bad, unfit, fallacious, precarious, unsound, fluidAntonyms:
steady, easy, unreactive, lasting, resolute, firm, stabilised, sane, stabile, stable, unfluctuating, unchangeable, stabilized -
unstableadjective
disposed to psychological variability
«his rather unstable religious convictions»
Synonyms:
unsound, fluid, precarious, mentally illAntonyms:
resolute, lasting, sane, stabilized, unfluctuating, stabilised, stable, stabile, firm, unchangeable, steady, easy, unreactive -
fluid, unstableadjective
subject to change; variable
«a fluid situation fraught with uncertainty»; «everything was unstable following the coup»
Synonyms:
mentally ill, mobile, liquid, fluent, runny, smooth, precarious, unsound, fluidAntonyms:
firm, lasting, stable, stabile, resolute, steady, unfluctuating, unreactive, unchangeable, sane, easy, stabilised, stabilized
PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes
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List of paraphrases for «unstable»:
volatile, instability, unsettled, precarious, unsteady, shaky, fragile, destabilizing, uncertain, ever-shifting, labile, insecure, destabilization, stable, fluid
How to pronounce unstable?
How to say unstable in sign language?
How to use unstable in a sentence?
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Yutaka Miura:
The Japanese market will likely stay unstable for a while, there are a lot of concerns in the market, but the two main things investors in Japan are concerned about now are a rising yen and continuous falls in U.S. shares.
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Marc Eckstein:
One of our biggest challenges right now is getting our ambulances out of the emergency department, when our paramedics and EMTs transport a patient to an emergency department, there’s a transfer of care that has to take place. Patients who are unstable or unable to be safely transferred to the waiting room or to a chair need a bed in the emergency department to be transferred to. And those beds are lacking right now.
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Manual Braga da Cruz:
At this moment, the most plausible is that the president will appoint a government led by (Socialist leader Antonio) Costa, working on the assumption that there is agreement on the left, but the situation is fluid, unstable and could evolve.
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Gary Quinlan:
The DPRK (North Korea) is in effect a totalitarian state which uses violence and repression against its own citizens to maintain itself and its threatening military apparatus in power, the regime’s atrocities against its own people have created an inherently unstable state.
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Barack Obama:
As the first woman to serve as America’s top diplomat, Madeleine’s courage and toughness helped bring peace to the Balkans and paved the way for progress in some of the most unstable corners of the world.
Translation
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Citation
Use the citation below to add these synonyms to your bibliography:
Are we missing a good synonym for unstable?
What is another word for Unstable?
-
unsteady
change, character trait
-
changeable
change, doubtful
-
volatile
change, doubtful
-
inconstant
change, doubtful
-
shaky
change, doubtful
-
precarious
doubtful, weak
-
fickle
volatile, lubricious
-
erratic
volatile, disturbed
-
variable
changeable, volatile
-
rickety
weak, flexible
-
wobbly
weak, flexible
-
uncertain
volatile, lubricious
-
mercurial
fickle, changeable
-
fluid
changeable
-
inconsistent
fickle, changeable
-
capricious
property, volatile
-
unsettled
inconclusive, inconstant
-
insecure
character trait, unsteady
-
mutable
changeable
-
unpredictable
-
temperamental
inconstant
-
wavering
lubricious, inconstant
-
unbalanced
unsteady
-
rocky
unsteady
-
weak
character trait, precarious
-
vacillating
property, character trait
-
fluctuating
character trait
-
unsound
-
infirm
weak
-
tottering
flexible, unsteady
-
uneven
-
irregular
-
risky
tricky
-
mentally ill
unbalanced
-
changeful
-
undependable
lubricious
-
sensitive
tense
-
flighty
crazy
-
ticklish
tricky
-
impermanent
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Nearby Words
unstably
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Synonyms for Unstable. (2016). Retrieved 2023, May 02, from https://thesaurus.plus/synonyms/unstable
Synonyms for Unstable. N.p., 2016. Web. 02 May. 2023. <https://thesaurus.plus/synonyms/unstable>.
Synonyms for Unstable. 2016. Accessed May 02, 2023. https://thesaurus.plus/synonyms/unstable.
All synonyms in one line
aberrant, ambiguous, ambivalent, ascending, borderline, en.synonym.one, capricious, chancy, changeable, contingent, deceitful, deceptive, decrepit, delicate, dependent, deranged, descending, difficult, dilapidated, disoriented, dizzy, doubtful, equivocal, erratic, fickle, flighty, en.synonym.one, flimsy, fluctuating, fluid, frivolous, going, hazardous, hesitant, huffy, in motion, inconsistent, inconstant, indecisive, infirm, insecure, insidious, irrational, irresolute, irresponsible, irritable, lubricious, lubricous, mercurial, mobile, moving, mutable, en.synonym.one, nervous, neurotic, portable, precarious, ramshackle, rickety, risky, rootless, sensitive, shabby, shaky, shifting, shifty, temperamental, ticklish, timid, touchy, treacherous, troubled, uncertain, unclear, undecided, undependable, undetermined, unfixed, unsettled, unsteady, unsure, untrustworthy, vacillating, vagrant, variable, volatile, wavering, wayward, weak, wishy-washy, wobbly, mentally ill, unsound.
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