Entry Word: instability

Function: noun

Meaning: the quality or state of not being firmly fixed in position <the instability of the bridge became apparent when it suddenly collapsed>

Synonyms insecurity, precariousness, shakiness, unsteadiness

Related Words insubstantiality, unsoundness; changeability, inconstancy, mutability

Near Antonyms firmness, soundness, substantiality

Antonyms fixedness, security, stability, steadiness