unstableness

the quality or state of not being firmly fixed in position if the tunnel had been properly inspected, the unstableness of the overhead concrete panels would have been discovered in time Synonyms insecurity, precariousness, shakiness, instability, unsteadinessRelated Words insubstantiality, unsoundness; changeability, inconstancy, mutability; laxness, looseness, slacknessNear Antonyms firmness, soundness, substantialityAntonyms fastness, fixedness, security, stability, steadiness