Synonyms of unstable

unstable 1 of 2

adjective

1

as in unsteady

not being in or able to maintain a state of balance

the minute we put the books down on the unstable desk, the whole stack went crashing to the floor

Synonyms & Similar Words

• unsteady
• precarious
• rocky
• unbalanced
• uneven
• shaky
• wobbly
• insecure
• wonky
• tipsy
• infirm
• tippy
• rickety
• wabbly
• tottering
• unsound
• lopsided
• doddering
• teetering
• wavery
• awry
• askew
• tottery
• doddery
• jiggly
• jiggling
• staggery
• off-kilter
• cockeyed

Antonyms & Near Antonyms

• stable
• steady
• stabilized
• balanced
• level
• substantial
• straight
• equilibrated
• even
• sound
• sturdy

2

as in volatile

likely to change frequently, suddenly, or unexpectedly

financial investors don't like an unstable economy

Synonyms & Similar Words

• volatile
• unpredictable
• inconsistent
• changeful
• uncertain
• variable
• unsettled
• mercurial
• mutable
• fluctuating
• capricious
• inconstant
• changeable
• temperamental
• unsteady
• fickle
• erratic
• unreliable
• shaky
• fluid
• up in the air
• skittish
• random
• haphazard
• scattered
• flickery
• arbitrary
• aimless
• ambivalent
• untrustworthy
• slapdash
• undependable
• stray
• irregular
• dicey
• hit-or-miss
• desultory
• versatile
• adaptable
• vacillating
• mobile
• protean
• wavering
• hesitating
• shilly-shallying
• shilly-shally

Antonyms & Near Antonyms

• stable
• constant
• certain
• steady
• predictable
• stationary
• unchanging
• invariable
• unchangeable
• immutable
• settled
• uniform
• permanent
• even
• persistent
• changeless
• durable
• unvarying
• lasting
• reliable
• equable
• abiding
• dependable
• true
• sure
• trustworthy
• trusty
• tried
• tried-and-true

3

as in changing

not staying constant

unstable temperatures are not ideal storage conditions for wine

Synonyms & Similar Words

• changing
• uneven
• varying
• volatile
• unequal
• erratic
• changeful
• inconsistent
• unsteady
• fluctuating
• irregular
• uncertain
• variable
• mercurial
• capricious
• unsettled
• changeable
• fickle
• mutable
• inconstant
• fluid
• choppy

Antonyms & Near Antonyms

• stable
• constant
• steady
• unchanging
• regular
• changeless
• unvarying

unstableness

2 of 2

noun

as in instability

the quality or state of not being firmly fixed in position

if the tunnel had been properly inspected, the unstableness of the overhead concrete panels would have been discovered in time

Synonyms & Similar Words

• instability
• insecurity
• unsteadiness
• precariousness
• shakiness
• unsoundness
• mutability
• changeability
• looseness
• inconstancy
• laxness
• slackness
• insubstantiality

Antonyms & Near Antonyms

• stability
• security
• steadiness
• fastness
• fixedness
• soundness
• firmness
• substantiality