139 entries under stubborn topic. ×

7
unflagging(adjective, strong, tough, fit, solid)
6
bold(adjective, strong, vigorous, noble, resolute)
6
grim(adjective, strong, hard, tough, severe)
6
harsh(adjective, mean, strong, hard, tough)
6
headstrong(adjective, hard, tough, rough, harsh)
6
recalcitrant(adjective, tough, persistent, obstinate)
5
contumacious(adjective, tough, persistent, obstinate)
5
hardened(adjective, set, strong, hard, tough)
5
incompliant(adjective, tough, solid, determined, stiff)
4
insubordinate(adjective, tough, persistent, obstinate)
4
serious(adjective, strong, hard, tough, severe)
4
stiff-necked(adjective, mean, strong, hard, tough)
4
uncompliant(adjective, tough, determined, resolute)
4
unmanageable(adjective, tough, persistent, obstinate)
3
bullheaded(adjective, strong, hard, tough, determined)
3
dead set on(expression, adjective, idiom, secure, solid)
3
pigheaded(adjective, mean, hard, tough, determined)
3
uncooperative(adjective, mean, hard, persistent, obstinate)
3
unsympathetic(adjective, mean, hard, severe, harsh)
2
cantankerous(adjective, tough, persistent, obstinate)
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APASmart Define. (2016). firm thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/firm/thesaurus/synonyms
ChicagoSmart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, firm thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>.
MLASmart Define. "firm thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms>