"instabilities" in the noun sense
1. instability
an unstable order
2. instability
unreliability attributable to being unstable
3. imbalance, instability, unbalance
a lack of balance or state of disequilibrium
"a hormonal imbalance"
4. instability, unstableness
the quality or attribute of being unstable and irresolute
Source: WordNet® (An amazing lexical database of English)
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