5
fickle(adjective, unreliable, insecure, treacherous, incalculable)
3
fly-by-night(adjective, unreliable, insecure, treacherous, incalculable)
3
unserviceable(adjective, unreliable, insecure, treacherous, incalculable)
2
capricious
2
corruptible
2
ephemeral
2
evanescent
2
fleeting
2
frail
2
insecure(adjective, unreliable, treacherous, incalculable)
2
momentary
2
perishable
2
temporal
2
temporary
2
transient
2
transitory
1
accident-sensitive(adjective, unreliable, insecure, treacherous, incalculable)
1
brittle
1
changeable
1
deciduous
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APASmart Define. (2015). nondurable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nondurable/thesaurus/synonyms
ChicagoSmart Define. 2015. "nondurable thesaurus" https://smartdefine.org/nondurable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, nondurable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nondurable/thesaurus/synonyms>.
MLASmart Define. "nondurable thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/nondurable/thesaurus/synonyms>