48 entries under voluntary topic. ×
| wished(adjective, free, deliberate, natural, willing) | |
| witting(adjective, free, deliberate, natural, willing) | |
| artless(natural, spontaneous) | |
| effortless(natural, spontaneous) | |
| genuine(natural, spontaneous) | |
| natural | |
| possible(adjective, elective) | |
| unwitting(natural, spontaneous) |
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| APA | Smart Define. (2015). optional thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/optional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "optional thesaurus" https://smartdefine.org/optional/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, optional thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/optional/thesaurus/synonyms>. |
| MLA | Smart Define. "optional thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/optional/thesaurus/synonyms> |