3 entries under difficult topic. ×

23
punishing(adjective, hard, complex, punishment)
18
oppressive(adjective, hard, complex)
18
severe(adjective, hard, complex)
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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>