65 entries under severe topic. ×

15
rigid(adjective, moderate, determined, resolute)
13
inflexible(adjective, moderate, firm, determined)
12
intolerant(adjective, accept, conservative, prejudiced)
11
uncompromising(adjective, determined, resolute, obstinate)
9
obstinate(adjective, moderate, determined, resolute)
8
obdurate(adjective, determined, resolute, obstinate)
8
relentless(adjective, determined, resolute, persistent)
8
strict(adjective, straight, sober, persistent)
6
unbending(adjective, close, firm, determined)
5
strait-laced(adjective, restraint)
5
stiff-necked
4
puritanical
4
rigorous(adjective, obstinate, stubborn, unbending)
4
severe(adjective, persistent, obstinate, insistent)
4
stern(adjective, persistent, obstinate, insistent)
4
stringent(adjective, obstinate, stubborn, unbending)
3
authoritarian
3
censorious
3
demanding(adjective, persistent, obstinate, insistent)
3
exacting(adjective, persistent, obstinate, insistent)
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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>