- Definitions|2
- Thesaurus|119
- Abbreviations|0
| voluntarily(adverb, happily, willingly) | |
| freely(adverb, happily, willingly, deliberately, voluntarily) | |
| alternatively | |
| electively | |
| unnecessarily(adverb, pointlessly, needlessly) | |
| arbitrarily | |
| by choice(expression, happily, freely, willingly, deliberately) | |
| discretionarily | |
| facultatively | |
| discretionally | |
| extramurally | |
| independently | |
| optional | |
| permissively | |
| selectively | |
| spontaneously(adverb, happily, freely, willingly, deliberately) | |
| unrestrictedly | |
| volitionally | |
| without being asked(expression, idiom, happily, freely, willingly) | |
| at pleasure(expression, idiom, choice) |
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| APA | Smart Define. (2016). optionally thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/optionally/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "optionally thesaurus" https://smartdefine.org/optionally/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, optionally thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/optionally/thesaurus/synonyms>. |
| MLA | Smart Define. "optionally thesaurus" 30 March 2016. Web. 20 September 2026. <https://smartdefine.org/optionally/thesaurus/synonyms> |