96 entries under obstinate topic. ×

3
single-minded(adjective, tough, firm, unreasonable, grim)
3
strict(adjective, hard, persistent, rigid)
3
tough(adjective, mean, strong, hard, firm)
3
uncooperative(adjective, mean, hard, persistent, rigid)
3
unflinching(adjective, resolution, persistent, insistent)
2
dogged(adjective, mean, strong, hard, tough)
2
immutable(adjective, set, hard, stiff, rigid)
2
recalcitrant(tough, firm, persistent, stubborn)
2
rigorous(hard, resolute, rigid, inflexible, strict)
2
solid(adjective, set, strong, hard, tough)
2
unchangeable(adjective, set, hard, stiff, rigid)
1
anal-retentive(adjective, persistent, insistent, dogged)
1
bloody-minded(adjective, persistent, insistent, dogged)
1
bound(verb, adjective, strong, tough, firm)
1
cantankerous(adjective, persistent, insistent, dogged)
1
confirmed(adjective, persistent, insistent, dogged)
1
contrary(adjective, persistent, insistent, dogged)
1
contumacious(adjective, persistent, insistent, dogged)
1
cussed(adjective, persistent, insistent, dogged)
1
defiant(adjective, persistent, insistent, dogged)
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APASmart Define. (2015). iron thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, iron thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>.
MLASmart Define. "iron thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms>