127 entries under tough topic. ×

6
fervent(adjective, clear, severe, keen)
6
gutsy(adjective, clear, strong, severe)
6
solid(adjective, calm, strong, secure)
5
bound(adjective, set, strong, severe)
5
pigheaded(adjective, determined, usual, regular)
5
refractory(adjective, firm, difficult, obstinate)
5
strict(adjective, close, strong, hard)
5
sure(adjective, calm, close, strong, secure)
5
unafraid(adjective, strong, ready, determined)
4
assured(verb, adjective, strong, easy)
4
doughty(adjective, strong, firm, bold)
4
stouthearted(strong, solid, determined, bold)
3
forceful(adjective, clear, strong, severe)
3
incompliant(adjective, firm, difficult, determined)
3
keen(adjective, clear, severe, intense)
3
nervy(adjective, strong, energetic, passionate)
3
perverse(adjective, hard, sharp, difficult)
2
daredevil(adjective, strong, bold, spirited)
2
fervid(adjective, clear, severe, keen)
2
fiery(adjective, strong, keen, bright)
11 years ago|30k views|share |citing 
APASmart Define. (2015). resolute thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/resolute/thesaurus/synonyms
ChicagoSmart Define. 2015. "resolute thesaurus" https://smartdefine.org/resolute/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, resolute thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/resolute/thesaurus/synonyms>.
MLASmart Define. "resolute thesaurus" 3 August 2015. Web. 29 September 2026. <https://smartdefine.org/resolute/thesaurus/synonyms>