English dictionary



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English adjective: unstable

1. unstable lacking stability or fixity or firmness


SamplesUnstable political conditions.
The tower proved to be unstable in the high wind.
An unstable world economy.


Similarcoseismal, coseismic, crank, cranky, explosive, rickety, rocky, seismal, seismic, shaky, tender, tippy, tipsy, top-heavy, tottering, volatile, volcanic, wobbly, wonky


See alsoimpermanent, inconstant, temporary, unsteady


Antonymsstable

2. unstable highly or violently reactive


SamplesSensitive and highly unstable compounds.


Similarreactive


Antonymsunreactive

3. unstable affording no ease or reassurance


SamplesA precarious truce.


Synonymsprecarious


Similaruneasy


Antonymseasy

4. unstable suffering from severe mental illness


SamplesOf unsound mind.


Synonymsmentally ill, unsound


Similarinsane


Antonymssane

5. unstable disposed to psychological variability


SamplesHis rather unstable religious convictions.


Similarirresolute


Antonymsresolute

6. unstable subject to change; variable


SamplesA fluid situation fraught with uncertainty.
Everything was unstable following the coup.


Synonymsfluid


Similarchangeable, changeful


Antonymsunchangeable









Based on WordNet 3.0 copyright © Princeton University.
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