754 entries under adjective topic. ×

7
pigheaded(mean, hard, tough, firm)
7
prudish(tough, correct, severe, firm)
7
unvarying(set, still, regular, fixed)
6
buckram(hard, firm, solid, stiff)
6
changeless(set, severe, firm, still)
6
close-minded
6
cold(hard, cool, severe, harsh)
6
correct(hard, severe, rough, difficult)
6
dense(set, strong, hard, tough)
6
finicky(tough, harsh, strict, thorough)
6
frozen(hard, firm, solid, fixed)
6
fussy(tough, harsh, strict, particular)
6
headstrong(tough, firm, unreasonable, inflexible)
6
indurate(mean, hard, firm, determined)
6
oppressive(hard, tough, severe, rough)
6
persevering(tough, firm, determined, unreasonable)
6
pitiless(severe, harsh, cruel, determined)
6
proper(hard, correct, severe, rough)
6
reserved
6
stark(hard, severe, firm, solid)
11 years ago|38k views|share |citing 
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>