41 entries under tough topic. ×

3
rigid(adjective, firm, unreasonable, inflexible)
3
unbending(adjective, firm, determined, resolute)
2
balky(firm, unreasonable, grim, inflexible)
2
determined(adjective, firm, unreasonable, fixed)
2
firm(adjective, determined, unreasonable, fixed)
2
inexorable(adjective, firm, determined, resolute)
2
persevering(firm, unreasonable, grim, inflexible)
2
recalcitrant(firm, determined, unreasonable, fixed)
2
relentless(adjective, firm, determined, resolute)
2
tenacious(firm, unreasonable, fixed, grim)
1
cantankerous(firm, determined, unreasonable, fixed)
1
cussed(firm, unreasonable, grim, inflexible)
1
fixed(firm, determined, unreasonable, inflexible)
1
insubordinate(firm, unreasonable, grim, inflexible)
1
ornery(firm, unreasonable, grim, inflexible)
1
rebellious(firm, unreasonable, grim, inflexible)
1
steadfast(firm, determined, unreasonable, fixed)
1
unmanageable(firm, determined, unreasonable, fixed)
1
unreasonable(firm, grim, inflexible, irrational)
1
unshakable(firm, unreasonable, grim, inflexible)
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APASmart Define. (2015). opinionated thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/opinionated/thesaurus/synonyms
ChicagoSmart Define. 2015. "opinionated thesaurus" https://smartdefine.org/opinionated/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, opinionated thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/opinionated/thesaurus/synonyms>.
MLASmart Define. "opinionated thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/opinionated/thesaurus/synonyms>