20
inconstant(adjective, sympathetic, broken, finished, occasional)
16
fickle(adjective, cold, sympathetic, hot, steady)
12
fluctuating(adjective, sympathetic, broken, finished, occasional)
11
capricious(adjective, reasonable, predictable, given)
10
unstable(adjective, clear, sound, sympathetic, steady)
10
changeable(adjective, calm, sympathetic, broken, finished)
10
unsteady(adjective, sympathetic, broken, finished, occasional)
10
adaptable
10
changed greatly
9
untrustworthy(adjective, sympathetic, broken, finished, occasional)
9
ever changing
8
disloyal(adjective, sympathetic, broken, finished, occasional)
8
fitful(adjective, irregular, sporadic)
8
varying(adjective, sympathetic, broken, finished, occasional)
7
irregular(adjective, sympathetic, steady, broken, finished)
7
unpredictable(adjective, changeable, predictable)
7
variable
6
occasional(adjective, sympathetic, regular, irregular, broken)
6
intermittent(adjective, regular, irregular, sporadic)
6
mutable(adjective, changeable)
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APASmart Define. (2016). constant thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/constant/thesaurus/antonyms
ChicagoSmart Define. 2016. "constant thesaurus" https://smartdefine.org/constant/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, constant thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/constant/thesaurus/antonyms>.
MLASmart Define. "constant thesaurus" 12 February 2016. Web. 22 September 2026. <https://smartdefine.org/constant/thesaurus/antonyms>