unstable
/ʌnˈsteɪbəl/
adjective
- Likely to change or fail; not firmly fixed or steady.
- The stack of books was unstable and nearly fell over.
- The political situation in the region remains unstable.
- After the earthquake, the building's foundation became unstable.
- Having or showing a tendency to experience extreme or sudden changes in mood or behavior.
- His unstable emotions made it hard for him to keep a job.
- The therapist worked with the patient to manage unstable moods.
- She has been feeling unstable since the accident.
- Tending to decompose or change chemically; not chemically stable.
- Some radioactive elements are highly unstable.
- The compound is unstable at room temperature.
- Chemists must handle unstable substances with great care.
Synonyms