Meaning of unstable in English

Classifying Adjective
unstable
Definitions
1. highly or violently reactive
Examples
- « sensitive and highly unstable compounds »
Synonyms
- reactive
2. affording no ease or reassurance
Examples
- « a precarious truce »
Synonyms
- uneasy
3. suffering from severe mental illness
Examples
- « of unsound mind »
Synonyms
- insane
4. disposed to psychological variability
Examples
- « his rather unstable religious convictions »
Synonyms
- irresolute
5. subject to change
Examples
- « variable »
- « a fluid situation fraught with uncertainty »
- « everything was unstable following the coup »
Synonyms
- changeable
- changeful
Qualitative Adjective
unstable
Definitions
1. lacking stability or fixity or firmness
Examples
- « unstable political conditions »
- « the tower proved to be unstable in the high wind »
- « an unstable world economy »
Synonyms
Antonyms
- stable

Pronunciation