92 entries under obstinate topic. ×

24
invincible(adjective, strong, strength, do, win)
21
unconquerable(adjective, strong, secure, strength, do)
20
determined(adjective, strong, hard, tough, firm)
19
resolute(adjective, strong, tough, firm, determined)
15
dogged(adjective, strong, firm, determined, steady)
15
unyielding(adjective, set, strong, hard, tough)
14
stubborn(adjective, strong, hard, tough, difficult)
14
firm(noun, adjective, strong, hard, tough)
13
staunch(adjective, strong, firm, determined, steady)
13
steadfast(adjective, strong, determined, vigorous, noble)
12
tenacious(adjective, strong, tough, firm, difficult)
11
resolved(adjective, determined, resolution, courage, resolute)
11
unflinching(adjective, strong, firm, determined, steady)
10
unmanageable(adjective, difficult, wild, awkward, persistent)
9
intractable(adjective, difficult, violent, persistent)
9
persistent(adjective, strong, firm, determined, steady)
8
recalcitrant(adjective, difficult, violent, wild, awkward)
8
relentless(adjective, strong, hard, tough, determined)
7
inflexible(adjective, set, strong, hard, tough)
7
stiff(adjective, hard, rigid, inflexible, strict)
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APASmart Define. (2015). indomitable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indomitable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indomitable thesaurus" https://smartdefine.org/indomitable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, indomitable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indomitable/thesaurus/synonyms>.
MLASmart Define. "indomitable thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/indomitable/thesaurus/synonyms>