0
unmandatory
0
unrequisite
0
unrestricted(open, free, voluntary, elective)
0
up to the individual(expression, idiom, open, free, voluntary)
0
useful
0
voting(adjective, electoral)
13 years ago|2.1k views|share |citing 
APASmart Define. (2013). facultative thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/facultative/thesaurus/synonyms
ChicagoSmart Define. 2013. "facultative thesaurus" https://smartdefine.org/facultative/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, facultative thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/facultative/thesaurus/synonyms>.
MLASmart Define. "facultative thesaurus" 28 June 2013. Web. 22 September 2026. <https://smartdefine.org/facultative/thesaurus/synonyms>