5
done for free(expression, adjective, idiom, compensation)
5
for the public good(expression, adjective, idiom, compensation)
4
done without compensation(expression, adjective, idiom, compensation)
4
unpaid
4
unsalaried
4
volunteer
2
honorary
2
unwaged
1
complimentary
1
without compensation(expression, adjective)
-1
amateur
13 years ago|1k views|share |citing 
APASmart Define. (2013). pro bono thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pro_bono/thesaurus/synonyms
ChicagoSmart Define. 2013. "pro bono thesaurus" https://smartdefine.org/pro_bono/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, pro bono thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pro_bono/thesaurus/synonyms>.
MLASmart Define. "pro bono thesaurus" 28 June 2013. Web. 23 September 2026. <https://smartdefine.org/pro_bono/thesaurus/synonyms>