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1. Dictionary

   instability

   /ˌɪnstəˈbɪlɪti/

   noun

   • 1. the state of being unstable; lack of stability: "political and economic instability" Similar unreliabilityuncertaintyunpredictabilityunpredictablenessprecariousnessunsteadinessinsecurityvulnerabilityperilousnessriskinessimpermanencetemporarinesstransienceinconstancychangeabilityvariabilityfluidityfluctuationrise and fallrising and fallinginformal:chancinessiffinessdodginessliterary:mutabilityunsteadinessunsoundnessshakinessricketinesswobblinessfrailtyfragilityflimsinessinsubstantialityOpposite stabilitystabilitysoundness
   • ▪ tendency to unpredictable behaviour or erratic changes of mood: "she showed increasing signs of mental instability" Similar changeablenessvariabilitycapriciousnessvolatilityflightinessfitfulnessvacillationoscillationunpredictabilityunpredictablenessmoodinessa tendency to blow hot and coldunsoundnessfrailtyinfirmityweaknessirregularityabnormalityrare:erraticismOpposite stability

   Word Origin late Middle English: from French instabilité, from Latin instabilitas, from instabilis, from in- ‘not’ + stabilis (see stable1).

   Scrabble Points: 16

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2. dictionary.cambridge.org › dictionary › englishINSTABILITY | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   the condition of being likely to change, esp. unexpectedly: Teenagers often go through periods of emotional instability. (Definition of instability from the Cambridge Academic Content Dictionary © Cambridge University Press)

3. www.merriam-webster.com › dictionary › instabilityInstability Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › instability

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   The meaning of INSTABILITY is the quality or state of being unstable; especially : lack of emotional or mental stability. How to use instability in a sentence.

4. www.dictionary.com › browse › instabilityINSTABILITY Definition & Meaning | Dictionary.com

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   noun. the quality or state of being unstable; lack of stability or firmness. the tendency to behave in an unpredictable, changeable, or erratic manner: emotional instability. instability. / ˌɪnstəˈbɪlɪtɪ /.

5. www.oxfordlearnersdictionaries.com › english › instabilityinstability noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › english › instability

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   a mental condition in which somebody’s behaviour is likely to change suddenly. He showed increasing signs of mental instability. Definition of instability noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

6. www.collinsdictionary.com › dictionary › englishINSTABILITY definition and meaning | Collins English Dictionary

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   Instability is the quality of being unstable. ...unpopular policies, which resulted in social discontent and political instability. ...Caligula's inherent mental instability. The length of the fuselage was increased due to a degree of directional instability. Synonyms: imbalance, weakness, volatility, variability More Synonyms of instability.

7. dictionary.cambridge.org › learner-english › instabilityINSTABILITY | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › learner-english › instability

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   INSTABILITY definition: a lot of changes in a situation or in someone's behaviour so that you do not know what will happen…. Learn more.

8. www.vocabulary.com › dictionary › instabilityInstability - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › instability

   Instability is the quality of not being stable, balanced, or predictable. If you've ever walked out onto a diving board, you've probably noticed its instability — meaning the board bends and bounces as you move.

9. www.thefreedictionary.com › instabilityInstability - definition of instability by The Free Dictionary

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   Define instability. instability synonyms, instability pronunciation, instability translation, English dictionary definition of instability. n. pl. in·sta·bil·i·ties The quality or condition of being unstable: economic instability; emotional instability.

10. www.ldoceonline.com › dictionary › instabilityinstability | meaning of instability in Longman Dictionary of ...

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    instability meaning, definition, what is instability: when a situation is not certain because ...: Learn more.

11. www.yourdictionary.com › instabilityInstability Definition & Meaning | YourDictionary

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    noun. instabilities. Lack of stability; unstableness. Webster's New World. The quality or condition of being unstable. Economic instability; emotional instability. American Heritage. Similar definitions. Tendency to behave or react violently or erratically. The instability of a chemical compound, emotional instability. Webster's New World.