140 entries under determined topic. ×

3
devoted(adjective, strong, firm, steady)
3
enduring(adjective, strong, flat, certain)
3
gritty(adjective, steady, resolution, bold)
3
headstrong(adjective, fixed, resolute, stubborn)
3
merciless(adjective, mean, harsh, cruel)
3
mortal(adjective, mean, severe, harsh, cruel)
3
obdurate(adjective, strong, flat, harsh, certain)
3
pertinacious(adjective, strong, firm, energetic)
3
refractory(adjective, fixed, persistent, obstinate)
3
stiff(adjective, harsh, cruel, fierce)
3
strict(adjective, strong, flat, harsh, certain)
3
unappeasable(adjective, mean, severe, harsh, cruel)
3
valorous(adjective, ready, bold, wise)
2
bound(adjective, strong, flat, harsh, certain)
2
cantankerous(adjective, fixed, persistent, obstinate)
2
continuing(adjective, strong, firm, steady)
2
contrary(adjective, fixed, persistent, obstinate)
2
dead set on(expression, adjective, idiom, strong, flat)
2
heady(fixed, stubborn, dogmatic)
2
patient(adjective, strong, firm, energetic)
11 years ago|9k views|share |citing 
APASmart Define. (2015). unflinching thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unflinching/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflinching thesaurus" https://smartdefine.org/unflinching/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unflinching thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unflinching/thesaurus/synonyms>.
MLASmart Define. "unflinching thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/unflinching/thesaurus/synonyms>