127 entries under tough topic. ×

108
determined(verb, adjective, set, clear, strong)
93
firm(noun, adjective, calm, close, set)
86
stubborn(adjective, determined, uncompromising, obstinate, rigid)
64
rigid(adjective, severe, firm, harsh)
63
inflexible(adjective, strong, hard, secure)
62
uncompromising(adjective, clear, hard, secure)
52
unyielding(adjective, appearance, clear, strong, hard)
49
set(verb, adjective, calm, strong, secure)
48
obdurate(adjective, strong, hard, secure)
47
inexorable(adjective, appearance, severe, firm)
46
steadfast(adjective, calm, close, clear, strong)
45
unbending(adjective, clear, strong, hard)
41
relentless(adjective, appearance, strong, severe)
39
obstinate(adjective, strong, hard, rough)
37
stiff(adjective, strong, hard, severe)
32
adamant(adjective, strong, hard, secure)
32
courageous(adjective, clear, strong, severe)
29
tenacious(adjective, clear, strong, severe)
26
dogged(adjective, appearance, strong, firm)
25
persistent(adjective, strong, flat, firm)
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APASmart Define. (2015). resolute thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/resolute/thesaurus/synonyms
ChicagoSmart Define. 2015. "resolute thesaurus" https://smartdefine.org/resolute/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, resolute thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/resolute/thesaurus/synonyms>.
MLASmart Define. "resolute thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/resolute/thesaurus/synonyms>