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We found 41 dictionaries with English definitions that include the word unstable:
Click on the first link on a line below to go directly to a page where "unstable" is defined.

General dictionaries General (30 matching dictionaries)
  1. unstable: Merriam-Webster.com [home, info]
  2. unstable: Oxford Learner's Dictionaries [home, info]
  3. unstable: American Heritage Dictionary of the English Language [home, info]
  4. unstable: Collins English Dictionary [home, info]
  5. unstable: Vocabulary.com [home, info]
  6. unstable: Macmillan Dictionary [home, info]
  7. unstable: Wordnik [home, info]
  8. unstable: Cambridge Advanced Learner's Dictionary [home, info]
  9. unstable: Wiktionary [home, info]
  10. unstable: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. unstable: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. unstable: Infoplease Dictionary [home, info]
  13. unstable: Dictionary.com [home, info]
  14. unstable: Online Etymology Dictionary [home, info]
  15. unstable: UltraLingua English Dictionary [home, info]
  16. unstable: Cambridge Dictionary of American English [home, info]
  17. Unstable (album), Unstable (song): Wikipedia, the Free Encyclopedia [home, info]
  18. Unstable: Online Plain Text English Dictionary [home, info]
  19. unstable: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. unstable: Rhymezone [home, info]
  21. Unstable: AllWords.com Multi-Lingual Dictionary [home, info]
  22. unstable: Webster's 1828 Dictionary [home, info]
  23. unstable: Free Dictionary [home, info]
  24. unstable: Mnemonic Dictionary [home, info]
  25. unstable: WordNet 1.7 Vocabulary Helper [home, info]
  26. unstable: LookWAYup Translating Dictionary/Thesaurus [home, info]
  27. unstable: Dictionary/thesaurus [home, info]
  28. Unstable: Wordnik [home, info]

Business dictionaries Business (4 matching dictionaries)
  1. Unstable: Construction Term Glossary [home, info]
  2. Unstable: Deardorff's Glossary of International Economics [home, info]
  3. unstable: Legal dictionary [home, info]
  4. unstable: BusinessDictionary.com [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. Unstable (Debian), unstable: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. unstable: Medical dictionary [home, info]

Science dictionaries Science (4 matching dictionaries)
  1. unstable: PHYSICAL ORGANIC CHEMISTRY [home, info]
  2. Unstable: The Computational Beauty of Nature [home, info]
  3. unstable, unstable, unstable: PlanetMath Encyclopedia [home, info]
  4. Unstable: Accelerator Glossary [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. unstable: Urban Dictionary [home, info]

(Note: See unstably for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (unstable)

adjective:  highly or violently reactive ("Sensitive and highly unstable compounds")
adjective:  disposed to psychological variability ("His rather unstable religious convictions")
adjective:  lacking stability or fixity or firmness ("Unstable political conditions")
adjective:  subject to change; variable ("Everything was unstable following the coup")
adjective:  affording no ease or reassurance
adjective:  suffering from severe mental illness

▸ Also see unstably
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Phrases that include unstable:   unstable equilibrium, angina unstable, unstable equilibria, be unstable, numerically unstable, more...

Words similar to unstable:   fluid, precarious, unsound, unstableness, unstably, mentally ill, shaky, more...

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