Synonym: unreliable, unsafe, unsound, unsteady, unsure, weak. Antonym: stable. Similar words: constable, unstability, unsuitable, unstoppable, stable, unsustainable, detestable, instability. Meaning: adj. 1. lacking stability or fixity or firmness 2. highly or violently reactive 3. affording no ease or reassurance 4. suffering from severe mental illness 5. disposed to psychological variability 6. subject to change; variable.
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31. My father was an unstable and unhappy man.
32. Heather suggested baldly that Ms. Lane was mentally unstable.
33. Political power bases are initially fluid and unstable.
34. As the uranium reacts its radioactivity produces unstable atoms.
35. The situation here is precarious, quite unstable.
36. Firstly capitalist society is by its very nature unstable.
37. Bennet denied assertions that she was mentally unstable.
38. Emotionally unstable, his aggressive attitude frequently culminates in violence.
39. They were too unstable to be transported.
40. Avoid shoes with too much cushioning -- they may be too soft or unstable.
41. More modern laser techniques allow much more subtle experiments to be applied to both small and large unstable molecules in flow systems.
42. Because of its highly unstable nature, various thromboxane A 2 -generating systems have to be used in order to study its vasoactive properties.
43. To outsiders it seemed that the regime was becoming unstable and that its survival appeared more and more doubtful.
44. The isotope U-235 is unstable(Sentencedict.com ), decaying by a process called spontaneous fission.
45. Was it safe to trust someone who was so emotionally unstable?
46. The epidemic is dynamic, unstable and continuing to spread rapidly.
47. That scaffolding looks unstable - get all the building workers off the site immediately.
48. This would produce helium-3 and tritium; the tritium is unstable and decays producing helium-3 which would add to that directly produced.
49. Lactate concentrations in whole blood are extremely unstable because of the rapid production and release of lactate by erythrocytes due to glycolysis.
50. The idea that most singles are inherently unmarriageable and the divorced unstable fails to explain the same pattern of afflictions among widowers.
51. Another possibility is that the timescale represents recurrence in a physical limit-cycle, for example unstable flaring in a pair-plasma.
52. As the boundaries between biology and technology are arguably dissolving, so the relationships between humans become unstable.
53. Anticipated here is that always unstable disjunction between identification and desire upon which male bonding depends.
54. But Gore was a sick man. Mentally unstable, he would kill his parents in an explosive night of violence.
55. Working with Clare every day, I began to realize how unstable she was.
56. For the moment everything seemed calm,[sentencedict.com] but under the surface the whole situation was very unstable.
57. Particularly suitable candidates are those with unstable diabetes and evidence of poor control with elevated glycosylated haemoglobin levels.
58. To that end Powell put a temporary gloss on an unstable situation.
59. Any hope of an improvement appeared unlikely in view of the reduction in the level of foreign investment caused by the unstable political situation.
60. Fears remain, however, that the area is too unstable for any such measures to be effective.
More similar words: constable, unstability, unsuitable, unstoppable, stable, unsustainable, detestable, instability, table, unsociable, unsolvable, notable, establish, unspeakable, mutable, potable, tableau, eatable, established, suitable, vegetable, portable, reputable, comfortable, immutable, irritable, tractable, countable, veritable, printable.