43 entries under free topic. ×

4
volunteer(adjective, feature, characteristic, deliberate)
3
honorary(adjective, feature, characteristic, respect)
3
intended(adjective, feature, characteristic, deliberate)
3
intentional(adjective, feature, characteristic, deliberate)
3
uncompelled(adjective, deliberate, natural, witting)
3
unpaid(adjective, feature, characteristic, deliberate)
3
willed(adjective, feature, characteristic, deliberate)
3
willful(adjective, deliberate, natural, witting)
2
facultative(adjective, open, voluntary, elective)
2
unbidden(adjective, deliberate, natural, witting)
1
opted(adjective, deliberate, natural, witting)
1
unprescribed(adjective, deliberate, natural, witting)
1
wished(adjective, deliberate, natural, witting)
1
witting(adjective, deliberate, natural, willing)
0
extra(adjective, open, voluntary, elective)
0
no strings attached(expression, adjective, idiom, open)
0
noncompulsory(adjective, open, extra, voluntary)
0
nonobligatory(adjective, open, extra, voluntary)
0
not required(expression, adjective, open, extra)
0
open(adjective, voluntary, elective)
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APASmart Define. (2015). discretional thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/discretional/thesaurus/synonyms
ChicagoSmart Define. 2015. "discretional thesaurus" https://smartdefine.org/discretional/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, discretional thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/discretional/thesaurus/synonyms>.
MLASmart Define. "discretional thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/discretional/thesaurus/synonyms>