19 entries under elective topic. ×

4
discretionary(adjective, open, free, voluntary)
4
optional(adjective, possible, voluntary, electoral)
3
facultative(adjective, open, free, voluntary)
2
voluntary(adjective, open, free, electoral)
1
arbitrary(adjective, open, free, voluntary)
1
discretional(adjective, open, free, voluntary)
1
possible(adjective, voluntary)
0
alternative(open, free, voluntary)
0
extra(open, free, voluntary)
0
free(open, voluntary)
0
no strings attached(expression, idiom, open, free, voluntary)
0
noncompulsory(open, free, voluntary)
0
not required(expression, open, free, voluntary)
0
open(free, voluntary)
0
uncompelled
0
unforced(open, free, voluntary)
0
unrestricted(open, free, voluntary)
0
up to the individual(expression, idiom, open, free, voluntary)
0
volitional(open, free, voluntary)
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APASmart Define. (2013). nonobligatory thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/nonobligatory/thesaurus/synonyms
ChicagoSmart Define. 2013. "nonobligatory thesaurus" https://smartdefine.org/nonobligatory/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2013, nonobligatory thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/nonobligatory/thesaurus/synonyms>.
MLASmart Define. "nonobligatory thesaurus" 28 June 2013. Web. 26 September 2026. <https://smartdefine.org/nonobligatory/thesaurus/synonyms>