| vicious(adjective, hard, severe, rough, harsh) | |
| violent(adjective, hard, severe, rough, harsh) | |
| voluntary(open, free, elective) | |
| wandering(adjective, unconformity, motiveless) | |
| wicked(adjective, cruel, unreasonable, dishonest, immoral) | |
| willful(adjective, chance, whimsical) | |
| wrongful(adjective, unreasonable, dishonest, extreme, immoral) | |
| adamant | |
| adventitious | |
| aimless | |
| alien | |
| all-powerful(adjective, main, chief, principal, tyrannical) | |
| ambivalent(adjective, motiveless) | |
| anomalistic | |
| any way the wind blows(adjective, careless, unstable, unreasonable, unpredictable) | |
| approximate(adjective, chance, whimsical) | |
| arbitary | |
| arbitral | |
| arbitrarily | |
| arbitrariness |
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| APA | Smart Define. (2015). arbitrary thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/arbitrary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "arbitrary thesaurus" https://smartdefine.org/arbitrary/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, arbitrary thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/arbitrary/thesaurus/synonyms>. |
| MLA | Smart Define. "arbitrary thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/arbitrary/thesaurus/synonyms> |