754 entries under adjective topic. ×

11
scrupulous(good, hard, complete, tough)
11
unchangeable(set, hard, regular, fixed)
10
bigoted(determined, resolute, obstinate, uncompromising)
10
flinty(strong, hard, tough, severe)
10
remorseless(harsh, resist, cruel, determined)
10
unmoving(severe, still, fixed, stiff)
10
unshakeable(determined, resolute, uncompromising)
10
unswerving(complete, total, intense, determined)
9
stiff-necked(mean, strong, hard, tough)
9
careful(close, correct, harsh, solid)
9
close(hard, tough, correct, severe)
9
conscientious(good, honest, fair, pure)
9
contrary(determined, resolute, persistent, obstinate)
9
cool(severe, cold, detached, unfriendly)
9
definite(hard, correct, severe, rough)
9
die-hard(resist, determined, resolute, persistent)
9
intolerant(set, severe, plain, straightforward)
9
narrow
9
punctilious(close, hard, tough, correct)
9
puritanical(tough, correct, moderate, severe)
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APASmart Define. (2015). rigid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, rigid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>.
MLASmart Define. "rigid thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms>