| 单词 | unstable |
| 释义 | unstable (once / 1991 pages) adj To be unstable is to lack stability, meaning things could change without warning, like an unstable bookshelf that is likely to fall down. If you are unstable emotionally, you might be ecstatically happy one minute and horribly depressed and angry the next. The adjective unstable means the opposite of stable. Stable is derived from the Latin base word stare meaning “to stand.” If a building, family, person, bridge, or chemical solution is stable it will “stand still,” even if something unexpected happens. On the other hand, if a person or thing is unstable and stress is applied, he, she, or it is likely to shift position, possibly in a dangerous way. WORD FAMILYunstable: unstableness, unstably+/destabilise: destabilised/destabilize: destabilization, destabilized, destabilizes, destabilizing/instability: instabilities/stabilisation: destabilisation/stabilise: destabilise, stabilisation, stabilised, stabiliser, stabilising/stability: instability, stabilities/stabilization: stabilizations/stabilize: destabilize, stabilization, stabilized, stabilizer, stabilizes, stabilizing/stabilizer: stabilizers/stable: stabilise, stability, stabilize, stabled, stableness, stabler, stables, stabling, stably, unstable/stabling: stablings USAGE EXAMPLESLava deltas are formed when lava enters the ocean and builds new land on loose and unstable substrate. Washington Times(Jan 02, 2017) She said the three biggest issues scholars face are child-care shortages, unstable housing and domestic violence. Washington Post(Jan 01, 2017) In the cases of Libya and Egypt, the countries are so unstable and dangerous, though, that repatriation is impossible. New York Times(Dec 30, 2016) 1adj subject to change; variable everything was unstable following the coup Syn fluid changeable, changeful such that alteration is possible; having a marked tendency to change 2adj lacking stability or fixity or firmness unstable political conditions the tower proved to be unstable in the high wind an unstable world economy Syn|Ant inconstant likely to change frequently often without apparent or cogent reason; variable impermanent, temporarynot permanent; not lasting coseismal, coseismicbeing where earthquake waves arrive simultaneously crank, cranky, tender, tippy(used of boats) inclined to heel over easily under sail explosive, volatileliable to lead to sudden change or violence rickety, shaky, wobbly, wonkyinclined to shake as from weakness or defect rockyliable to rock seismal, seismicsubject to or caused by an earthquake or earth vibration top-heavyunstable by being overloaded at the top tottering(of structures or institutions) having lost stability; failing or on the point of collapse volcanicexplosively unstable unsteadysubject to change or variation stable resistant to change of position or condition constantsteadfast in purpose or devotion or affection lasting, permanentcontinuing or enduring without marked change in status or condition or place firm, steady, unfluctuatingnot liable to fluctuate or especially to fall lastinglasting a long time without change stabile(chemistry, physics, biology) resistant to change stabilised, stabilizedmade stable or firm steadynot subject to change or variation especially in behavior 3adj affording no ease or reassurance Syn precarious uneasy lacking a sense of security or affording no ease or reassurance 4adj suffering from severe mental illness Syn mentally ill, unsound insane afflicted with or characteristic of mental derangement 5adj disposed to psychological variability his rather unstable religious convictions Syn irresolute uncertain how to act or proceed 6adj highly or violently reactive sensitive and highly unstable compounds Syn reactive participating readily in reactions |
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