| fluctuating(lively, unpredictable, changeable, temperamental) | |
| frisky | |
| full of go(expression, idiom) | |
| full of life(expression, idiom) | |
| full of pep(expression, idiom) | |
| gaga(lively, unpredictable, changeable, temperamental) | |
| gay(lively, unpredictable, changeable) | |
| gazelle | |
| gold | |
| gold-filled | |
| gold-plated | |
| golden | |
| greyhound | |
| harlequin | |
| inconsistent(adjective, changeable, indecisive) | |
| ironlike | |
| irregular(lively, unpredictable, changeable, temperamental) | |
| irrepressible(lively, unpredictable, changeable, temperamental) | |
| irresolute(adjective, changeable, untrue, indecisive, inconsistent) | |
| jet plane |
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| APA | Smart Define. (2016). quicksilver thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/quicksilver/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "quicksilver thesaurus" https://smartdefine.org/quicksilver/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, quicksilver thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/quicksilver/thesaurus/synonyms>. |
| MLA | Smart Define. "quicksilver thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/quicksilver/thesaurus/synonyms> |