80 entries under rigid topic. ×

1
dyed-in-the-wool(adjective, hard, severe, harsh)
1
enduring(clear, certain, definite, fixed)
1
hard-and-fast(adjective, set, hard, stiff)
1
hard as nails(expression, adjective, idiom, tough, firm)
1
hold the fort(expression, adjective, idiom, tough, firm)
1
hold the line(expression, adjective, idiom, tough, firm)
1
reserved(adjective, tough, firm, fixed, distant)
1
solid
1
stuffy(adjective, formal)
1
taut
1
tense
1
unflexible(adjective, tough, firm, fixed, distant)
1
uptight(adjective, tough, firm, fixed, distant)
0
abiding(clear, certain, definite, fixed)
0
ceremonious
0
genteel
0
planned(deliberate, determined, definite, fixed)
0
priggish
0
prissy
0
stickling
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APASmart Define. (2015). uncompromising thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/uncompromising/thesaurus/synonyms
ChicagoSmart Define. 2015. "uncompromising thesaurus" https://smartdefine.org/uncompromising/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, uncompromising thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/uncompromising/thesaurus/synonyms>.
MLASmart Define. "uncompromising thesaurus" 26 August 2015. Web. 26 September 2026. <https://smartdefine.org/uncompromising/thesaurus/synonyms>