Instability and Soundness
Opposite meaning words
Instability
Instability noun - The quality or state of not being firmly fixed in position.
Usage example: the instability of the bridge became tragically apparent when it suddenly collapsed
Nearby Word: instance
Soundness
Soundness noun - The ability to withstand force or stress without being distorted, dislodged, or damaged.
Usage example: the car manufacturer tested the soundness of the new model in various types of collisions
Instability is an antonym for soundness.
Cite this Source
Soundness and Instability. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/instability/soundness
Instability & Soundness. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/instability/soundness>.
Soundness or Instability. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/instability/soundness.
Google Ngram Viewer shows how "instability" and "soundness" have occurred on timeline