43 entries under adjective topic. ×

2
unbidden
2
uncompelled
2
volitional(open, free, voluntary)
2
voting(government, able)
1
no strings attached(expression, idiom, open, free)
1
noncompulsory(open, free, voluntary)
1
not compulsory(expression, idiom, able)
1
not required(expression, open, free, voluntary)
1
open(free, voluntary)
1
possible
1
unrestricted(open, free, voluntary)
1
up to the individual(expression, idiom, open, free)
1
willing
0
contributed
0
extra(open, free, voluntary)
0
filled by election(expression, idiom, voting)
0
non-compulsory
0
non-mandatory
0
non-requisite
0
passed by vote(expression, idiom, voting)
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APASmart Define. (2015). elective thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/elective/thesaurus/synonyms
ChicagoSmart Define. 2015. "elective thesaurus" https://smartdefine.org/elective/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, elective thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/elective/thesaurus/synonyms>.
MLASmart Define. "elective thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/elective/thesaurus/synonyms>