unstable
- adj.不稳定的;(行为、情绪)反复无常的;不稳固的;易变的;变化莫测的;易动(或倒下)的
unstableadj.
不稳定的；易变的；变化莫测的
likely to change suddenly
The political situation remains highly unstable.
政局仍然十分动荡。
（行为、情绪）反复无常的，不稳定的
if people are unstable , their behaviour and emotions change often and suddenly because their minds are upset
易动（或倒下）的；不稳固的
likely to move or fall
不稳定的；能衰变的
not staying in the same chemical or atomic state
chemically unstable
化学上不稳定的
These words all describe sb who is suffering from a mental illness.以上各词均用以形容患有精神疾病的人。
suffering from an illness of the mind, especially in a way that affects the way you think and behave指有精神病
[not usually before noun] ( rather formal ) suffering from a serious mental illness and unable to live in normal society指精神失常、神经错乱：
The question is, was the man insane when he committed the crime?
问题在于这男人犯罪时是否处于精神失常状态？
( medical ) suffering from or connected with neurosis (= a mental illness in which a person suffers strong feelings of fear and worry)指神经机能病的、神经官能症的：
the treatment of anxiety in neurotic patients
对神经官能症病人焦虑感的治疗
( medical ) suffering from or connected with psychosis (= a serious mental illness in which thought and emotions lose connection with external reality)指精神错乱的、有精神病的
mentally ill, especially because of very unhappy or shocking experiences指有精神病的、心理不正常的、精神紊乱的，尤因不幸或受刺激所致：
He works with emotionally disturbed children.
他从事跟精神异常儿童有关的工作。
having emotions and behaviour that are likely to change suddenly and unexpectedly指情绪、行为反复无常的、不稳定的
unstable
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1
ADJ-GRADED 不稳定的；不可靠的；动荡的
You can describe something as unstable if it is likely to change suddenly, especially if this creates difficulty or danger.After the fall of Pitt in 1801 there was a decade of unstable government...
1801年皮特倒台后，政府经历了10年的动荡。
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2
ADJ-GRADED 不牢固的；松脱的
Unstable objects are likely to move or fall.Both clay and sandstone are unstable rock formations.
黏土和砂岩都是不牢固的岩石构造。
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3
ADJ-GRADED （情绪）不稳定的，波动的
If people are unstable, their emotions and behaviour keep changing because their minds are disturbed or upset.He was emotionally unstable...
他情绪不稳定。
adj
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1
- subject to change;variable
- a fluid situation fraught with uncertainty
- everything was unstable following the coup
- Synonym: fluid
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2
- affording no ease or reassurance
- a precarious truce
- Synonym: precarious
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3
- highly or violently reactive
- sensitive and highly unstable compounds
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4
- disposed to psychological variability
- his rather unstable religious convictions
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5
- suffering from severe mental illness
- of unsound mind
- Synonym: mentally ill unsound
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6
- lacking stability or fixity or firmness
- unstable political conditions
- the tower proved to be unstable in the high wind
- an unstable world economy
数据来源：WordNet
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Coleridge was also a highly unstable person .
科尔里奇还是个情绪非常不稳定的人。
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We are usually tired already by the time we get on a plane , and the crowded space and unstable internet connection make work more challenging .
我们往往在登上飞机时已经很累了，而机舱里拥挤的空间和不稳定的网络只会让工作更有挑战性。
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The political situation remains highly unstable .
政局仍然十分动荡。
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The situation is unstable and potentially dangerous .
情况不稳定，可能有危险。
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Both clay and sandstone are unstable rock formations .
黏土和砂岩都是不牢固的岩石构造。
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After the fall of Pitt in 1801 there was a decade of unstable government
1801年皮特倒台后，政府经历了10年的动荡。
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It remains a highly unstable and strife-torn country .
这仍是一个动荡不安、冲突不断的国家。
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David 's mother was unstable and moody
戴维的妈妈情绪不稳定，心情也不好。
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Their politics consisted of unstable power-plays between rival groups .
他们的政治活动包括竞争团体间反复多变的打压行动。
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She was physically delicate and psychologically unstable .
她身体孱弱，心理上也不够稳定。
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He was emotionally unstable
他情绪不稳定。
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The political situation was unstable .
政局不稳。
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The erratic fluctuation of market prices is in consequence of unstable economy .
经济波动致使市场物价忽起忽落。
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The situation was unstable .
局势不稳。
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The bed is rickety [ unstable ] .
这床不牢。
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He was the most unstable kind of fool I had ever seen .
他是我所遇见过的最反复无常的傻瓜。
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Her emotions were always as unstable as the light winds of april .
她的感情总是象四月的无定准的轻风一样。
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The situation is unstable .
时局不稳。
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The enemy coalition was unstable enough .
敌人的联盟是很不稳固的。
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Colonel Cathcart lived by his wits in an unstable world .
卡思卡特上校凭着自己的聪明才智生活在一个动荡不定的社会里。
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Mathematical models have also revealed that food webs may be unstable , where small changes of top predators can lead to big effects throughout entire ecosystems ．
数学模型也揭示了食物网可能是不稳定的,食物网中顶级捕食者的微小变化会对整个生态系统产生巨大影响。
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This bookcase is too unstable to hold so many books .
这书橱很不结实，装不了这么多书。
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The patient 's condition was unstable .
那患者的病情不稳定。
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When the plate becomes unstable , it buckles laterally .
当板失去稳定时，就发生横向屈曲。
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Antioxidants are molecules that fight that stress by handing over their own electrons without becoming unstable themselves .
抗氧化剂是通过传递自己的电子，而不使自身变得不稳定的分子来对抗这种压力。
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A self-healing system model for unstable network environment was presented .
针对网络环境多变的情况，提出了一种动态自适应系统的理论模型。
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With multiple people working on an application , it can become unstable .
如果多人同时处理一个应用程序，那么它很可能会变得不太稳定。
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Influence of Initial Condition on Unstable Vibration of Rotor System
初始条件对转轴系统失稳的影响分析
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This system is a highly nonlinear and open-loop unstable system .
这一系统是一高度非线性且开环不稳定系统。
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It involved more industries , also some unstable factors .
它包含了更多的产业，也出现了一些不稳定的因素。