Antonyms of noun stableness

1 sense of stableness

Sense 1
stability, stableness -- (the quality or attribute of being firm and steadfast)
       Antonym of unstableness (Sense 1)
      => instability, unstableness -- (the quality or attribute of being unstable and irresolute)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun stableness

1 sense of stableness

Sense 1
stability, stableness -- (the quality or attribute of being firm and steadfast)
       => steadiness, firmness -- (the quality of being steady or securely and immovably fixed in place)