- a lacking stability or fixity or firmness
unstable political conditions
the tower proved to be unstable in the high wind
an unstable world economy
- s highly or violently reactive
sensitive and highly unstable compounds
- s affording no ease or reassurance
- s suffering from severe mental illness
- s disposed to psychological variability
his rather unstable religious convictions
- s subject to change; variable
everything was unstable following the coup
- While mass murderers are sometimes too mentally unstable to explain their acts, the suspect in the Akihabara killings gave police reasons that were chillingly mundane.
- A large majority (70%) think weather patterns globally have become more unstable in the last three years and 56% feel average temperatures around the world have risen.
- The New Economy How people are adapting to the unstable job market: Now Hiring! Jobs are coming back, but not where you might expect: Hot Towns.
- Timothy Geithner in FOXNews
Senators, in this crisis, our financial system failed to meet its most basic obligations,Geithner said. "The system was too fragile and unstable, and because of this, the system was unfair and unjust. Individuals, families and businesses...
- President Bush in Dallas Morning News
America is addicted to oil, which is often imported from unstable parts of the world,he said.
- Michaelle Jean in Toronto Star
Gov-Gen MichaÃ«lle Jean, who's of Haitian origin, says the natural disaster has hit "a country with an extremely fragile infrastructure, where many buildings are already unstable."