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)

arbitrary	Based on random choice or personal whim, rather than any reason or system. A country under arbitrary government.
capricious	Changeable. A capricious summer breeze.
changeable	Able to be changed or exchanged. Cover the tables with changeable cloths.
doubtful	Not established as genuine or acceptable. The fire was of doubtful origin.
dubious	Open to doubt or suspicion. He has a dubious record indeed.
erratic	Not even or regular in pattern or movement; unpredictable. Her breathing was erratic.
fickle	Marked by erratic changeableness in affections or attachments. Fickle weather.
impulsive	Without forethought. He regretted his impulsive offer.
in the balance	Directed or bound inward.
incalculable	Not capable of being computed or enumerated. Incalculable riches.
inconstant	Frequently changing; variable or irregular. Inconstant affections.
irregular	Lacking continuity or regularity. Highly irregular behavior.
mercurial	Of or containing the element mercury. Gels containing organic mercurial compounds.
moody	Giving an impression of melancholy or mystery. He sat in moody silence.
random	Governed 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.
uncertain	Subject to change. Everything is uncertain about the army.
undependable	Not worthy of reliance or trust. Evidence is scarce and often undependable.
unforeseeable	Incapable of being anticipated. Unforeseeable consequences.
unmanageable	Difficult or impossible to manage, manipulate, or control. His behaviour was becoming unmanageable at home.
unreliable	Dangerously unstable and unpredictable. Unreliable information.
unstable	Likely to give way; not stable. His rather unstable religious convictions.
unsure	Lacking self-confidence. She was feeling nervous unsure of herself.
up in the air	Getting 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.
whimsical	Determined 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)

anomalous	Deviating 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.
arrhythmic	Not rhythmic; without rhythm or regularity. An arrhythmic heartbeat.
capricious	Changeable. Authoritarian rulers are frequently capricious.
changeable	Subject to change. A changeable climate.
episodic	Of writing or narration; divided into or composed of episodes. The book is episodic and the incidents don t always hang together.
erratic	Having no fixed course. The source of stone for the whetstones may have been glacial erratics.
fickle	Changing frequently, especially as regards one’s loyalties or affections. Fickle friends.
impulse	A 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.
impulsive	Characterized by undue haste and lack of thought or deliberation. An impulsive force.
inconstant	Frequently changing; variable or irregular. Inconstant affections.
infrequent	Not occurring often; rare. Her visits were so infrequent.
insecure	Not firm or firmly fixed; likely to fail or give way. A financially insecure period.
intermittent	Stopping and starting at irregular intervals. Intermittent rain.
irregular	A member of an irregular military force. Irregular hiring practices.
mercurial	Liable 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.
patchy	Existing or happening in small, isolated areas. A patchy essay.
quicksilver	Liable to sudden unpredictable change. A quicksilver character cool and willful at one moment utterly fragile the next.
random	Lacking 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.
shaky	Shaking or trembling. A cracked dangerously shaky table.
sporadic	Occurring at irregular intervals or only in a few places; scattered or isolated. Sporadic fighting broke out.
spotty	Of uneven quality; patchy. His spotty record on the environment.
uncertain	Not established beyond doubt; still undecided or unknown. Plans are still uncertain.
unreliable	Not able to be relied upon. He s lazy and unreliable.
unsettled	Still in doubt. One question remains unsettled.
unstable	Likely to change or fail; not firmly established. He was mentally unstable.
unsteady	Not regular in pitch or rhythm. Nathan pushed the mug into her unsteady hand.
variable	The 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.
volatile	A volatile substance a substance that changes readily from solid or liquid to a vapor. Volatile solvents.