unstable

/ənˈsteɪbəl/

lacking stability or fixity or firmness

Chinese meaning: 不稳定的；不稳固的；易变的

The political situation in the region remains unstable, causing concern among investors.

该地区的政治局势仍然不稳定，引起投资者的担忧。

The patient's condition is unstable, so the doctors are monitoring him closely.

病人的情况不稳定，因此医生正在密切监测他。