5
unfixed(adjective, unstable, unsettled, variable)
4
brief(adjective, transient)
4
elastic(adjective, elastic)
4
fitful(adjective, careless, unstable, unreasonable, unsettled)
4
flickering(adjective, transient)
4
fly-by-night
4
irregular(adjective, unstable, unsettled, unpredictable, unreliable)
4
permutable(adjective, unstable, unsettled, fickle, variable)
4
pliant(adjective, fickle, elastic)
4
resilient(adjective, elastic)
4
rootless(adjective, transient)
4
short-term(adjective, transient)
4
supple(adjective, elastic)
4
temperamental(adjective, careless, unstable, unreasonable, impulsive)
4
uneven(adjective, unbalanced, unhinged)
4
variant(adjective, change, unstable, unsettled, changeable)
3
cursory(adjective, transient)
3
doubtful(adjective, uneven, fickle, unbalanced, unhinged)
3
fugacious
3
fugitive
10 years ago|12k views|share |citing 
APASmart Define. (2016). mutable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/mutable/thesaurus/synonyms
ChicagoSmart Define. 2016. "mutable thesaurus" https://smartdefine.org/mutable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, mutable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/mutable/thesaurus/synonyms>.
MLASmart Define. "mutable thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/mutable/thesaurus/synonyms>