Unstable synonyms | Best 96 synonyms for unstable

capricious

Characterized by, arising from, or subject to caprice; impulsive or unpredictable:

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volatile

(Computing, of memory) whose content is lost when the computer is powered down

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unsteady

Not firm, solid, or securely in place; unstable.

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unpredictable

Unable to be predicted.

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uncertain

Fitful or unsteady.

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fractionable

Subject to fission

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mentally ill

Having a mental illness.

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fluctuating

Easily disturbed

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eccentric

The definition of eccentric is something that is not exactly circular.

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erratic

(Geol.) Designating a boulder or rock formation transported some distance from its original source, as by a glacier

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chaotic (related)

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fissionable

Capable of undergoing fission:

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rattletrap

Mechanically unreliable or in disrepair.

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inconstant

Not remaining firm in mind or purpose

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rootless

Not belonging to a particular place or society:

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dizzy

Having a whirling, dazed sensation; giddy; lightheaded

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sensitive

Easily hurt, upset, or offended:

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oversensitive

Having excessive sensitivity; reacting to stimuli too readily; thin-skinned.

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thin-skinned

Used other than as an idiom: see thin,"Ž skinned.

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timid

Fearful and hesitant:

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delicate

The definition of delicate is someone or something that is subtle, fragile, frail or a skilled example of something.

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fissiparous

Factious, tending to break into pieces.

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firm (antonym)

Marked by or indicating the tone and resiliency of healthy tissue:

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steady (antonym)

Firm in standing or position; not tottering or shaking; fixed; firm.

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solid (antonym)

Not hollowed out:

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emotional

Readily affected with or stirred by emotion:

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irresolute

Lacking in resolution; indecisive.

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labile

Fluctuating widely:

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loose

Relaxed.

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protean

Very changeable; readily taking on different shapes and forms

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turbulent

Characterized by disorder, commotion, or unrest:

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unsettled

Not stable or fixed; changeable; uncertain

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deform (related)

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unbalance (related)

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insecure (related)

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fragile (related)

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unbalanced (related)

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uneven (related)

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giddy

Causing or capable of causing dizziness:

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precarious

Based on uncertain, unwarranted, or unproved premises:

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wavering

Fluctuating; being in doubt; undetermined; indecisive; uncertain; unsteady.

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wobbly

Inclined to wobble; shaky

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wiggly

Having a form that suggests wiggling; wavy

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weaving

Having a high center of gravity

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shifty

Distinguished by frequent changes in direction:

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top-heavy

The definition of top-heavy is someone or something that has most of its weight at the top and is likely to fall over as a result.

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teetering

Having a high center of gravity

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shifting

Having a high center of gravity

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beetling

Having a high center of gravity

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jutting

Having a high center of gravity

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lightly balanced

Having a high center of gravity

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variable

(Mathematics) Having no fixed quantitative value.

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changeable

Varying in color or appearance when seen from different angles:

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astatic

(Physics) Having no particular directional characteristics.

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ataxic

Pertaining to ataxia.

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mercurial

Quick and changeable in temperament; volatile:

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mutable

Capable of or subject to change or alteration.

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shaky

Not dependable or reliable; questionable

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titubant

Stumbling, staggering; with the movement of one who is tipsy

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tottering

Unsteady, precarious or rickety.

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tricky

Requiring caution or skill:

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unhinged

(Philately) (of a stamp) not having ever been mounted using a stamp hinge.

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unreliable

Not reliable.

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vacillating

Liable to vacillate; wavering, irresolute.

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astaticism

The state of being astatic.

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ataxia

Any of various degenerative, often hereditary, disorders that are characterized by ataxia and are frequently associated with cerebellar atrophy.

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lability

(Uncountable) The state of being labile

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volatility

(Finance) A measure of the degree to which a security rises or falls in price over a period of time

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volubility

(Uncountable) the state of being voluble

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stable (antonym)

Capable of returning to equilibrium or original position after having been displaced

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strong (antonym)

Persuasive, effective, and cogent:

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alterable

Capable of being changed, changeable, mutable

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fluid

Like a fluid; that can change rapidly or easily; not settled or fixed

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variant

Having or exhibiting variation; varying:

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various

Of diverse kinds:

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fantastic

Seemingly impossible; incredible

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fickle

The definition of fickle is changing your mind easily and often.

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freakish

Strange, unusual, abnormal or bizarre

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inconsistent

Displaying or marked by a lack of consistency, especially:

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temperamental

Subject to changing and unpredictable emotional states; moody, capricious; sometimes used figuratively to describe user-unfriendly or unstable machines or software that are either complicated and/or have poorly written instructions and are subsequently difficult to operate.

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ticklish

Very sensitive or easily upset; touchy

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whimsical

Playful or fanciful, especially in a humorous way:

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infirm

Weak or ill, not in good health.