38 entries under firm topic. ×

21
stubborn(adjective, characteristic, quality, strong, hard)
13
dogged(adjective, tough, resist, determined)
13
pigheaded(adjective, tough, difficult, resist)
9
opinionated(adjective, tough, determined, resolute)
8
perverse(adjective, tough, resist, determined)
8
stiff-necked(adjective, strong, hard, tough)
8
tenacious(adjective, tough, difficult, resist)
6
persistent(adjective, tough, determined, unreasonable)
5
adamant(adjective, strong, hard, tough)
5
determined(adjective, tough, unreasonable, stiff)
5
persevering(adjective, tough, determined, unreasonable)
5
refractory(adjective, tough, difficult, determined)
5
tough(adjective, strong, hard, difficult)
5
unrelenting(adjective, strong, hard, tough)
4
implacable(adjective, strong, hard, tough)
4
inflexible(adjective, strong, hard, tough)
4
self-willed(tough, difficult, determined, awkward)
4
unbending(adjective, strong, hard, tough)
4
uncompromising(adjective, tough, determined, resolute)
3
grim(adjective, strong, hard, tough)
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APASmart Define. (2015). bullheaded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/bullheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "bullheaded thesaurus" https://smartdefine.org/bullheaded/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, bullheaded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/bullheaded/thesaurus/synonyms>.
MLASmart Define. "bullheaded thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/bullheaded/thesaurus/synonyms>