| 1. |
(satellite adjective) highly or violently reactive; "sensitive and highly unstable compounds" |
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| 2. |
(satellite adjective) disposed to psychological variability; "his rather unstable religious convictions" |
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| 3. |
(adjective) lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy" |
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Antonyms: stable |
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| 4. |
(satellite adjective) subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup |
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Synonyms: fluid |
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| 5. |
(satellite adjective) affording no ease or reassurance; "a precarious truce" |
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Synonyms: precarious |
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| 6. |
(satellite adjective) suffering from severe mental illness; "of unsound mind" |
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Synonyms: mentally ill, unsound |
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