50 entries under firm topic. ×

41
stubborn(adjective, obstinate, determined, characteristic, quality)
27
obstinate(adjective, mean, strong, hard, tough)
23
obdurate(adjective, strong, hard, tough)
22
inflexible(adjective, mean, strong, hard, tough)
21
dogged(adjective, mean, strong, hard, tough)
19
headstrong(adjective, tough, resist, determined)
18
unyielding(adjective, mean, strong, hard, tough)
17
hardheaded(adjective, strong, hard, tough)
15
adamant(adjective, mean, strong, hard, tough)
15
pertinacious(adjective, strong, tough, difficult)
15
tenacious(adjective, strong, tough, resist)
12
intractable(adjective, tough, difficult, indifferent)
12
refractory(adjective, tough, difficult, determined)
11
willful(adjective, tough, difficult, resist)
10
determined(adjective, tough, resolute, impulsive)
10
opinionated(adjective, tough, determined, resolute)
9
self-willed(adjective, tough, difficult, determined)
8
contumacious(adjective, tough, determined, unreasonable)
8
fixed(adjective, mean, hard, determined)
8
recalcitrant(adjective, tough, difficult, awkward)
<123>
11 years ago|5.4k views|share |citing 
APASmart Define. (2015). mulish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mulish/thesaurus/synonyms
ChicagoSmart Define. 2015. "mulish thesaurus" https://smartdefine.org/mulish/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, mulish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mulish/thesaurus/synonyms>.
MLASmart Define. "mulish thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/mulish/thesaurus/synonyms>