46 entries under grim topic. ×

23
obdurate(adjective, strong, hard, tough, firm)
21
dogged(adjective, mean, strong, hard, tough)
19
pigheaded(adjective, mean, hard, tough, difficult)
17
hardheaded(adjective, strong, hard, tough, firm)
15
adamant(adjective, mean, strong, hard, tough)
15
pertinacious(adjective, strong, tough, firm, difficult)
13
bullheaded(adjective, strong, hard, tough, difficult)
13
uncompromising(adjective, mean, hard, deliberate, determined)
12
firm(adjective, mean, strong, hard, tough)
12
intractable(adjective, tough, firm, difficult, indifferent)
12
perverse(adjective, mean, hard, tough, difficult)
11
willful(adjective, tough, firm, difficult, resist)
9
unrelenting(adjective, mean, strong, hard, tough)
8
contumacious(adjective, tough, firm, determined, unreasonable)
8
fixed(adjective, mean, hard, firm, determined)
8
relentless(adjective, mean, strong, hard, tough)
8
stiff-necked(adjective, mean, strong, hard, tough)
7
adamantine(adjective, strong, hard, tough, firm)
7
inexorable(adjective, mean, strong, hard, tough)
7
unbending(adjective, mean, strong, hard, tough)
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APASmart Define. (2015). mulish thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mulish/thesaurus/synonyms
ChicagoSmart Define. 2015. "mulish thesaurus" https://smartdefine.org/mulish/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, mulish thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mulish/thesaurus/synonyms>.
MLASmart Define. "mulish thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/mulish/thesaurus/synonyms>