71 entries under resolute topic. ×

34
intransigent(adjective, resist, determined, obstinate)
33
inexorable(adjective, strong, hard, tough, resist)
32
inflexible(adjective, strong, hard, tough, firm)
32
unrelenting(adjective, strong, hard, tough, resist)
31
adamant(adjective, strong, hard, tough, firm)
31
stubborn(adjective, characteristic, quality, strong, hard)
30
unyielding(adjective, strong, hard, tough, firm)
26
obdurate(adjective, strong, hard, tough, resist)
26
rigid(adjective, strong, hard, tough, severe)
26
uncompromising(adjective, tough, resist, determined)
25
unbending(adjective, strong, hard, tough, resist)
24
relentless(adjective, strong, hard, tough, resist)
21
hard(adjective, strong, strength, tough, firm)
20
firm(adjective, strong, hard, tough, determined)
17
immovable(adjective, strong, hard, tough, cruel)
17
implacable(adjective, strong, hard, tough, resist)
15
grim(adjective, strong, hard, tough, resist)
14
determined(adjective, strong, hard, tough, severe)
14
steely(adjective, strong, hard, tough, firm)
12
iron(adjective, set, strong, hard, tough)
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APASmart Define. (2015). adamantine thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/adamantine/thesaurus/synonyms
ChicagoSmart Define. 2015. "adamantine thesaurus" https://smartdefine.org/adamantine/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, adamantine thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/adamantine/thesaurus/synonyms>.
MLASmart Define. "adamantine thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/adamantine/thesaurus/synonyms>