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Search Result for "instability": 
Wordnet 3.0

NOUN (4)

1. an unstable order;

2. unreliability attributable to being unstable;

3. a lack of balance or state of disequilibrium;
- Example: "a hormonal imbalance"
[syn: imbalance, instability, unbalance]

4. the quality or attribute of being unstable and irresolute;
[syn: instability, unstableness]

The Collaborative International Dictionary of English v.0.48:

Instability \In`sta*bil"i*ty\, n.; pl. Instabilities. [L. instabilitas: cf. F. instabilit['e].] [1913 Webster] 1. The quality or condition of being unstable; lack of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness; as, the instability of a building. [1913 Webster] 2. Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc. --Addison. Syn: Inconstancy; fickleness; changeableness; wavering; unsteadiness; unstableness. [1913 Webster]
WordNet (r) 3.0 (2006):

instability n 1: an unstable order [ant: stability] 2: unreliability attributable to being unstable 3: a lack of balance or state of disequilibrium; "a hormonal imbalance" [syn: imbalance, instability, unbalance] [ant: balance] 4: the quality or attribute of being unstable and irresolute [syn: instability, unstableness] [ant: stability, stableness]
Moby Thesaurus II by Grady Ward, 1.0:

146 Moby Thesaurus words for "instability": ambitendency, ambivalence, caducity, capriciousness, chanciness, change of mind, changeability, changeableness, choppiness, corruptibility, criticalness, danger, dappleness, death, decrepitude, delicacy, desultoriness, deviability, deviation, difference, differentiation, disorder, divarication, divergence, diversification, double-mindedness, doubtfulness, dubiety, dubiousness, eccentricity, ephemerality, ephemeralness, erraticism, evanescence, fence-sitting, fence-straddling, fickleness, finitude, fleetingness, flightiness, freakishness, fugacity, hazard, hazardousness, impermanence, impermanency, impulsiveness, incapacity, inconsistency, inconstancy, indecision, indecisiveness, inequality, infirmity, infirmity of purpose, insecurity, insipidity, insolidity, insubstantiality, invalidism, irregularity, irresolution, jerkiness, mercuriality, momentariness, moodiness, mortality, motleyness, mugwumpery, mugwumpism, mutability, nonconformism, nonconformity, nonstandardization, nonuniformity, peril, perilousness, perishability, pluralism, precariousness, raggedness, restlessness, ricketiness, risk, riskiness, second thoughts, senility, shakiness, shiftiness, shiftingness, slipperiness, speculativeness, sword of Damocles, tergiversation, ticklish business, ticklishness, totteriness, touchiness, transience, transiency, transientness, transitoriness, treacherousness, treachery, unauthenticity, unauthoritativeness, uncertainty, unconformism, unconformity, undecidedness, undependability, undeterminedness, unevenness, unfaithworthiness, unfirmness, unfixedness, unhealthiness, unorthodoxy, unpredictability, unreliability, unsafeness, unsettledness, unsettlement, unsolidity, unsoundness, unstableness, unsteadfastness, unsteadiness, unsturdiness, unsubstantiality, unsureness, untrustworthiness, vapidity, variability, variation, variegation, variety, variousness, versatility, volatility, wantonness, wateriness, wavering, waywardness, whimsicality, wishy-washiness