123 entries under strict topic. ×

7
dour(adjective, hard, tough, severe, firm)
7
hard-line(adjective, strong, hard, tough, severe)
7
immutable(adjective, set, hard, regular, fixed)
7
pigheaded(adjective, mean, hard, tough, firm)
7
prudish(adjective, tough, correct, severe, firm)
6
changeless(adjective, set, severe, firm, still)
6
cold(adjective, hard, cool, severe, harsh)
6
finicky(adjective, tough, harsh, thorough)
6
fussy(adjective, tough, harsh, particular)
6
oppressive(adjective, hard, tough, severe, rough)
6
pitiless(adjective, severe, harsh, cruel, determined)
6
proper(adjective, hard, correct, severe, rough)
6
unadaptable(adjective, set, hard, stiff, resolute)
6
unbreakable(adjective, strong, hard, severe, firm)
5
Draconian(adjective, tough, severe, firm, harsh)
5
dead set(expression, adjective, tough, severe, firm)
5
difficult(adjective, hard, tough, severe, rough)
5
ironclad(adjective, set, hard, severe, cruel)
5
regular(adjective, correct, solid, exact, proper)
5
sharp(adjective, hard, correct, severe, rough)
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APASmart Define. (2015). rigid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, rigid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>.
MLASmart Define. "rigid thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms>