42 entries under firm topic. ×

1
insubordinate(tough, unreasonable, grim, persistent)
1
mulish(tough, unreasonable, grim, inflexible)
1
obdurate(tough, unreasonable, grim, inflexible)
1
opinionated(tough, unreasonable, grim, inflexible)
1
ornery(tough, cross, unreasonable, grim)
1
persevering(tough, unreasonable, grim, persistent)
1
persistent(tough, unreasonable, grim, inflexible)
1
pertinacious(tough, unreasonable, grim, inflexible)
1
pigheaded(tough, unreasonable, grim, inflexible)
1
rebellious(tough, unreasonable, grim, persistent)
1
relentless(tough, unreasonable, grim, inflexible)
1
rigid(tough, unreasonable, inflexible, obstinate)
1
self-willed(tough, unreasonable, grim, inflexible)
1
single-minded(tough, unreasonable, grim, persistent)
1
steadfast(tough, unreasonable, inflexible, obstinate)
1
stiff-necked(tough, unreasonable, grim, persistent)
1
tenacious(tough, unreasonable, grim, inflexible)
1
unbending(tough, unreasonable, grim, inflexible)
1
unreasonable(tough, grim, persistent, inflexible)
1
unshakable(tough, unreasonable, grim, inflexible)
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APASmart Define. (2015). untoward thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/untoward/thesaurus/synonyms
ChicagoSmart Define. 2015. "untoward thesaurus" https://smartdefine.org/untoward/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, untoward thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/untoward/thesaurus/synonyms>.
MLASmart Define. "untoward thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/untoward/thesaurus/synonyms>