unstable

形容词 unstable:

1. lacking stability or fixity or firmness
2. highly or violently reactive
3. affording no ease or reassurance
   同义词：precarious
4. suffering from severe mental illness
   同义词：mentally ill, unsound
5. disposed to psychological variability
6. subject to change; variable
   同义词：fluid

1. Most of the countries in the region have unstable economies.
   这个地区大多数国家的经济都不稳定。
2. If it were gentle, only the more unstable rods fell.
   若地震是微弱的，仅那些比较不稳定的杆子倒下。
3. Liable to capsize; unstable.
   易于翻转的; 不稳定的