65 entries under rigid topic. ×

1
trying(adjective, severe, rough, difficult, harsh)
1
unpermissive(adjective, hard, tough, severe, rough)
0
punctilious(adjective, hard, tough, severe, rough)
0
stickling(adjective, tough, severe, firm, harsh)
0
straight(adjective, tough, severe, firm, harsh)
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APASmart Define. (2016). stern thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/stern/thesaurus/synonyms
ChicagoSmart Define. 2016. "stern thesaurus" https://smartdefine.org/stern/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, stern thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/stern/thesaurus/synonyms>.
MLASmart Define. "stern thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/stern/thesaurus/synonyms>