unstable

Related topics: Chemistry

un·sta·ble /ʌnˈsteɪbəl/ AWL adjectiveadj

1 CHANGE/BECOME DIFFERENTlikely to change suddenly and become worse 不稳定的，易变的，动荡不定的 → instability

The political situation is still very unstable.

政局依然非常动荡。

an unstable relationship

不稳定的关系

2. BALANCE#something that is unstable is likely to move or fall 易动[倒下]的，不稳固的

3 CHANGE/BECOME DIFFERENTsomeone who is unstable changes very suddenly so that you do not know how they will react or behave 〔人〕反复无常的，动摇不定的

a mentally unstable man

一名精神状态不稳定的男子

4. HCan unstable chemical is likely to separate into simpler substances 〔化学物质〕不稳定的

Examples from the Corpus

unstable• The situation here is precarious, quite unstable.• The situation there remains very unstable.• This moves their orbital electrons from the ground state to a higher energy level that is unstable.• Regimes governed by violence are always unstable.• Was it safe to trust someone who was so emotionally unstable?• Handy rejects a full-blown version of this vision on the grounds that such a divergent society would be very unstable.• It was potentially extremely dangerous and although it had survived since the war it may have been very unstable.• He is emotionally unstable, and his aggressive attitude often culminates in violence.• The isotope U-235 is unstable, decaying by a process called spontaneous fission.• an unstable economy• That scaffolding looks unstable - get all the building workers off the site immediately.• Mentally unstable, he would kill his parents in an explosive night of violence.• The woman, who was described as mentally unstable, refused to talk about her reasons for the shooting.• Working with Clare every day, I began to realize how unstable she was.

un·sta·ble adjectiveadj

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