55 entries under grim topic. ×

1
flinty(adjective, strong, hard, tough, severe)
1
forbidding(adjective, strong, hard, tough, severe)
1
frowning(adjective, strong, hard, tough, severe)
1
hang-tough(adjective, strong, hard, tough, severe)
1
hard-shell(adjective, strong, hard, tough, severe)
1
insubordinate(adjective, tough, firm, unreasonable)
1
mortified(adjective, strong, hard, tough, severe)
1
ornery(adjective, tough, firm, unreasonable)
1
persistent(adjective, tough, firm, deliberate, determined)
1
rebellious(adjective, tough, firm, unreasonable)
1
serious(adjective, strong, hard, tough, severe)
1
single-minded(adjective, tough, firm, determined, unreasonable)
1
unreasonable(adjective, tough, firm, persistent)
1
unshakable(adjective, mean, hard, tough, firm)
1
untoward(adjective, tough, firm, unreasonable)
<123>
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APASmart Define. (2015). stiff-necked thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stiff-necked/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiff-necked thesaurus" https://smartdefine.org/stiff-necked/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, stiff-necked thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stiff-necked/thesaurus/synonyms>.
MLASmart Define. "stiff-necked thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/stiff-necked/thesaurus/synonyms>