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
Security
Security noun - The state of not being exposed to danger.
Usage example: after the burglaries, police presence in the neighborhood was enhanced to give residents a stronger sense of security
Instability is an antonym for security.
How words are described
Both words in one sentence
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Despite a scientist's warnings on the Tau cannon's instability, a careless security guard still manages to overcharge the gun, killing them both.
Source: Video Game / Black Mesa
Cite this Source
Security and Instability. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/instability/security
Instability & Security. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/instability/security>.
Security or Instability. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/instability/security.
Google Ngram Viewer shows how "instability" and "security" have occurred on timeline