78 entries under firm topic. ×

40
recalcitrant(adjective, characteristic, quality, stubbornness, resistance)
39
refractory(adjective, characteristic, quality, stubbornness, refusal)
37
mulish(adjective, obstinate, characteristic, quality, stubbornness)
35
set(adjective, strong, secure, tough)
34
pertinacious(adjective, characteristic, quality, obstinate, stubbornness)
33
intractable(adjective, characteristic, quality, stubbornness, obstinate)
33
tough(adjective, characteristic, quality, mean, strong)
29
contumacious(adjective, obstinate, characteristic, quality, stubbornness)
28
self-willed(adjective, characteristic, quality, stubbornness, refusal)
27
unbendable(adjective, characteristic, quality, resist)
25
unwavering(adjective, secure, intense, deliberate)
23
strong-willed(adjective, determined, resolute, change, position)
21
stiff-necked(adjective, characteristic, quality, stubbornness, determined)
21
hardheaded(adjective, characteristic, quality, strong, hard)
21
opinionated(adjective, characteristic, quality, determined)
20
serious(adjective, strong, hard, tough)
19
severe(adjective, appearance, strong, hard, tough)
18
rebellious(adjective, characteristic, quality, tough)
18
unmanageable(adjective, characteristic, quality, tough, difficulty)
17
steadfast(adjective, characteristic, quality, strong, secure)
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APASmart Define. (2015). stubborn thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/stubborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "stubborn thesaurus" https://smartdefine.org/stubborn/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, stubborn thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/stubborn/thesaurus/synonyms>.
MLASmart Define. "stubborn thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/stubborn/thesaurus/synonyms>