voluntary
adjective
[ ˈvɒlənt(ə)ri ]
• done, given, or acting of one's own free will.
• "we are funded by voluntary contributions"
Similar:
optional,
discretionary,
at one's discretion,
elective,
non-compulsory,
non-mandatory,
not required,
open,
open to choice,
volitional,
up to the individual,
permissive,
discretional,
• working, done, or maintained without payment.
• "a voluntary helper"
Similar:
unpaid,
unsalaried,
without pay,
without payment,
free of charge,
without charge,
for nothing,
for free,
honorary,
volunteer,
unrewarded,
pro bono (publico),
voluntary
noun
• an organ solo played before, during, or after a church service.
• (in a competition) a special performance left to the performer's choice.
Origin:
late Middle English: from Old French volontaire or Latin voluntarius, from voluntas ‘will’.
