23
punishing(adjective, hard, difficult, complex, punishment)
18
oppressive(adjective, hard, difficult, complex)
18
severe(adjective, hard, difficult, complex)
10
punitive(adjective, punishment, disciplinary)
8
corrective(adjective, healing, disciplinary, curing)
6
punitory(adjective, punishment, punishing, disciplinary, punitive)
5
punishable
5
retributive(adjective, disciplinary)
4
correctional(adjective, punishing, disciplinary)
4
disciplinary(adjective, healing, helpful, restorative, remedial)
3
criminal
2
castigatory
2
chastening(adjective, disciplinary)
2
penitentiary
2
retaliatory(adjective, punishing, disciplinary)
1
concerning punishment(expression, adjective, punishing, disciplinary)
1
detective
1
felonious
1
grueling
1
gruelling
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APASmart Define. (2015). penal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/penal/thesaurus/synonyms
ChicagoSmart Define. 2015. "penal thesaurus" https://smartdefine.org/penal/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, penal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/penal/thesaurus/synonyms>.
MLASmart Define. "penal thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/penal/thesaurus/synonyms>