4
parochial(adjective, moderate, straight, narrow, rigid)
4
adamant(adjective, determined, resolute, persistent, obstinate)
4
hard(obstinate, stubborn, unbending)
4
hardheaded(adjective, determined, resolute, inflexible, obstinate)
4
iron(adjective, persistent, obstinate, stubborn, unbending)
4
orthodox(moderate, cautious, conventional, timid, traditional)
4
puritanical(adjective, severe)
4
restricted
4
rigorous(adjective, severe, obstinate, stubborn, unbending)
4
severe(adjective, severe, persistent, obstinate, insistent)
4
steadfast(adjective, determined, resolute, persistent, obstinate)
4
stern(adjective, severe, persistent, obstinate, insistent)
4
stringent(adjective, severe, obstinate, stubborn, unbending)
4
unrelenting(adjective, determined, resolute, obstinate, uncompromising)
3
determined(adjective, resolute, persistent, obstinate, uncompromising)
3
insular
3
mean(adjective, parsimony)
3
authoritarian(adjective, severe)
3
avaricious(adjective, parsimony)
3
bovine(adjective, determined, resolute, obstinate, uncompromising)
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APASmart Define. (2015). hidebound thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/hidebound/thesaurus/synonyms
ChicagoSmart Define. 2015. "hidebound thesaurus" https://smartdefine.org/hidebound/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, hidebound thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/hidebound/thesaurus/synonyms>.
MLASmart Define. "hidebound thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/hidebound/thesaurus/synonyms>