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41 results for: unstable

Dictionary Entries (6 more entries. View all »)
Dictionary.com Unabridged (v 1.1)Cite This Source
un·sta·ble    Audio Help   [uhn-stey-buhl] Pronunciation Key
–adjective
1.not stable; not firm or firmly fixed; unsteady.
2.liable to fall or sway.
3.unsteadfast; inconstant; wavering: unstable convictions.
4.marked by emotional instability: an unstable person.
5.irregular in movement: an unstable heartbeat.
6.Chemistry. noting compounds that readily decompose or change into other compounds.
[Origin: 1175–1225; ME; see un-1, stable2]

—Related forms
un·sta·ble·ness, noun
un·sta·bly, adverb

—Synonyms 2. precarious. 2, 3. See unsettled. 3. vacillating.
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Thesaurus Entries (3 more entries. View all »)
  Roget's II: The New ThesaurusCite This Source
Main Entry:  unstable
Part of Speech:  adjective
Definition:  Not physically steady or firm.
Synonyms:  precarious, rickety, shaky, tottering, tottery, unsteady, wobbly
Source:  Roget's II: The New Thesaurus, Third Edition
by the Editors of the American Heritage® Dictionary.
Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company.
Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
  Synonym Collection v1.1Cite This Source
Main Entry:  unstable
Part of Speech:  adjective
Synonyms:  astatic, ataxic, changeable, eccentric, emotional, erratic, fickle, flighty, flimsy, fluctuating, fragile, inconsistent, inconstant, insecure, labile, loose, mercurial, mutable, precarious, protean, rocky, shaky, shifting, shifty, teetering, titubant, tottering, tricky, turbulent, unbalanced, unhinged, unreliable, unsettled, unsteady, vacillating, variable, volatile, wavering, wobbly
Source:  Synonym Collection v1.1
Copyright © 2008 by Lexico Publishing Group, LLC.
  Synonym Collection v1.1Cite This Source
Main Entry:  unstable
Part of Speech:  noun
Synonyms:  astaticism, ataxia, lability, volatility, volubility
Source:  Synonym Collection v1.1
Copyright © 2008 by Lexico Publishing Group, LLC.

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