UNPREDICTABLE: Synonyms and Related Words. What is Another Word for UNPREDICTABLE?

Need another word that means the same as “unpredictable”? Find 27 synonyms and 30 related words for “unpredictable” in this overview.

The synonyms of “Unpredictable” are: irregular, unforeseeable, incalculable, uncertain, unsure, doubtful, dubious, in the balance, up in the air, random, arbitrary, erratic, moody, volatile, unstable, fickle, capricious, whimsical, temperamental, mercurial, changeable, variable, inconstant, undependable, unreliable, unmanageable, impulsive

Unpredictable as an Adjective

Definitions of "Unpredictable" as an adjective

According to the Oxford Dictionary of English, “unpredictable” as an adjective can have the following definitions:

  • Not occurring at expected times.
  • Not able to be predicted; changeable.
  • Unknown in advance.
  • Not capable of being foretold.
  • Not occurring at a regular rate or fixed intervals.

Synonyms of "Unpredictable" as an adjective (27 Words)

arbitraryBased on random choice or personal whim, rather than any reason or system.
A country under arbitrary government.
A capricious summer breeze.
changeableAble to be changed or exchanged.
Cover the tables with changeable cloths.
doubtfulNot established as genuine or acceptable.
The fire was of doubtful origin.
dubiousOpen to doubt or suspicion.
He has a dubious record indeed.
erraticNot even or regular in pattern or movement; unpredictable.
Her breathing was erratic.
fickleMarked by erratic changeableness in affections or attachments.
Fickle weather.
impulsiveWithout forethought.
He regretted his impulsive offer.
in the balanceDirected or bound inward.
incalculableNot capable of being computed or enumerated.
Incalculable riches.
inconstantFrequently changing; variable or irregular.
Inconstant affections.
irregularLacking continuity or regularity.
Highly irregular behavior.
mercurialOf or containing the element mercury.
Gels containing organic mercurial compounds.
moodyGiving an impression of melancholy or mystery.
He sat in moody silence.
randomGoverned by or involving equal chances for each item.
Are you going to take some random guy on Twitter s word.
temperamental(of a person) liable to unreasonable changes of mood.
They were firm friends in spite of temperamental differences.
uncertainSubject to change.
Everything is uncertain about the army.
undependableNot worthy of reliance or trust.
Evidence is scarce and often undependable.
unforeseeableIncapable of being anticipated.
Unforeseeable consequences.
unmanageableDifficult or impossible to manage, manipulate, or control.
His behaviour was becoming unmanageable at home.
unreliableDangerously unstable and unpredictable.
Unreliable information.
unstableLikely to give way; not stable.
His rather unstable religious convictions.
unsureLacking self-confidence.
She was feeling nervous unsure of herself.
up in the airGetting higher or more vigorous.
variable(of a quantity) able to assume different numerical values.
Awards can be for variable amounts.
volatile(of a person) liable to display rapid changes of emotion.
A volatile situation with troops and rioters eager for a confrontation.
whimsicalDetermined by chance or impulse or whim rather than by necessity or reason.
The victim of whimsical persecutions.

Usage Examples of "Unpredictable" as an adjective

  • The unpredictable weather of the Scottish islands.
  • An unpredictable (or indeterminable) future.

Associations of "Unpredictable" (30 Words)

anomalousDeviating from what is standard, normal, or expected.
An anomalous situation.
arbitrary(of power or a ruling body) unrestrained and autocratic in the use of authority.
An arbitrary penalty.
arrhythmicNot rhythmic; without rhythm or regularity.
An arrhythmic heartbeat.
Authoritarian rulers are frequently capricious.
changeableSubject to change.
A changeable climate.
episodicOf writing or narration; divided into or composed of episodes.
The book is episodic and the incidents don t always hang together.
erraticHaving no fixed course.
The source of stone for the whetstones may have been glacial erratics.
fickleChanging frequently, especially as regards one’s loyalties or affections.
Fickle friends.
impulseA change of momentum produced by an impulse equivalent to the average value of the force multiplied by the time during which it acts.
I had an almost irresistible impulse to giggle.
impulsiveCharacterized by undue haste and lack of thought or deliberation.
An impulsive force.
inconstantFrequently changing; variable or irregular.
Inconstant affections.
infrequentNot occurring often; rare.
Her visits were so infrequent.
insecureNot firm or firmly fixed; likely to fail or give way.
A financially insecure period.
intermittentStopping and starting at irregular intervals.
Intermittent rain.
irregularA member of an irregular military force.
Irregular hiring practices.
mercurialLiable to sudden unpredictable change.
Mercurial twists of temperament.
occasional(of furniture) made or adapted for use on a particular occasion or for infrequent use.
Occasional freelancer seeks full time position.
patchyExisting or happening in small, isolated areas.
A patchy essay.
quicksilverLiable to sudden unpredictable change.
A quicksilver character cool and willful at one moment utterly fragile the next.
randomLacking any definite plan or order or purpose; governed by or depending on chance.
The class was hard but he was so random that it was always fun.
shakyShaking or trembling.
A cracked dangerously shaky table.
sporadicOccurring at irregular intervals or only in a few places; scattered or isolated.
Sporadic fighting broke out.
spottyOf uneven quality; patchy.
His spotty record on the environment.
uncertainNot established beyond doubt; still undecided or unknown.
Plans are still uncertain.
unreliableNot able to be relied upon.
He s lazy and unreliable.
unsettledStill in doubt.
One question remains unsettled.
unstableLikely to change or fail; not firmly established.
He was mentally unstable.
unsteadyNot regular in pitch or rhythm.
Nathan pushed the mug into her unsteady hand.
variableThe region of light variable winds to the north of the north east trade winds or in the southern hemisphere between the south east trade winds and the westerlies.
Awards can be for variable amounts.
volatileA volatile substance a substance that changes readily from solid or liquid to a vapor.
Volatile solvents.

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