16 entries under free topic. ×

12
discretional(adjective, open, will, voluntary)
11
elective(adjective, open, fit, choice)
8
arbitrary(adjective, open, chance, opinion)
8
facultative(adjective, open, choice, voluntary)
8
voluntary(adjective, open, will, elective)
6
unrestricted(adjective, open, freedom, voluntary)
5
open(adjective, open, extra, responsive)
4
nonobligatory(adjective, open, voluntary, elective)
4
unforced(adjective, open, voluntary, elective)
3
volitional(open, will, voluntary, elective)
2
alternative(adjective, open, voluntary, elective)
0
extra(open, voluntary, elective)
0
no strings attached(expression, idiom, open, voluntary)
0
noncompulsory(open, voluntary, elective)
0
not required(expression, open, voluntary, elective)
0
up to the individual(expression, idiom, open, voluntary)
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APASmart Define. (2015). discretionary thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/discretionary/thesaurus/synonyms
ChicagoSmart Define. 2015. "discretionary thesaurus" https://smartdefine.org/discretionary/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, discretionary thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/discretionary/thesaurus/synonyms>.
MLASmart Define. "discretionary thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/discretionary/thesaurus/synonyms>