| fleeting(adjective, capricious) | |
| flexible(adjective, changeable, fickle, variable, volatile) | |
| fluctuate | |
| fluctuation | |
| flutter | |
| frivolous(adjective, free, careless, wild, reckless) | |
| giddy(uneven, unbalanced, unhinged) | |
| halting(adjective, weak, uncertain, doubtful, hesitant) | |
| haphazard(adjective, irregular, disturbed, broken, erratic) | |
| infirm(weak, indecisive, vacillating) | |
| insecure(adjective, uneven, unbalanced, unhinged) | |
| irresponsible(unstable, unsettled, variable, capricious) | |
| malleable(adjective, fickle) | |
| modifying(verb, adjective, changing, varying, altering) | |
| moody | |
| mutating(verb, changing) | |
| nonuniform(unreliable, uneven, variable, erratic, random) | |
| occasional(adjective, regular, routine, unreliable, uneven) | |
| oscillation | |
| patchy(rough, irregular, odd, unreliable, variable) |
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| APA | Smart Define. (2015). fluctuating thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fluctuating/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fluctuating thesaurus" https://smartdefine.org/fluctuating/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, fluctuating thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fluctuating/thesaurus/synonyms>. |
| MLA | Smart Define. "fluctuating thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/fluctuating/thesaurus/synonyms> |