62 entries under voluntary topic. ×
| chosen(verb, adjective, feature, characteristic, free) | |
| discretional(adjective, feature, characteristic, free, deliberate) | |
| independent(adjective, feature, characteristic, free, deliberate) | |
| simple(adjective, open, light, easy, pure) | |
| unwitting(adjective, natural, unwilling, obligatory) | |
| willed(adjective, feature, characteristic, free, regard) | |
| willful(adjective, free, deliberate, natural, willing) | |
| willing(adjective, free, natural, impulsive, will) | |
| autonomous(adjective, feature, characteristic, free, deliberate) | |
| optional(adjective, free, deliberate, natural, willing) | |
| uncontrolled(adjective, reasonable, relaxed, wild, common) | |
| designful(adjective, feature, characteristic, free, deliberate) | |
| elected(adjective, feature, characteristic, free, deliberate) | |
| free-willed(adjective, feature, characteristic, free, deliberate) | |
| freely(adjective, feature, characteristic, free, deliberate) | |
| genuine(adjective, feature, characteristic, honest, modest) | |
| honorary(adjective, feature, characteristic, free, regard) | |
| off-the-cuff(adjective, simple, informal, natural, straightforward) | |
| uninvited(adjective, willing, arrogant, unexpected) | |
| unpaid(adjective, feature, characteristic, free, deliberate) |
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| APA | Smart Define. (2015). spontaneous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/spontaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "spontaneous thesaurus" https://smartdefine.org/spontaneous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, spontaneous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/spontaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "spontaneous thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/spontaneous/thesaurus/synonyms> |