2
spartan
2
stalwart
2
staunch(adjective, weak, resolute, unreliable, dependable)
2
steady
2
stiff
2
stout
2
sturdy
2
undiscouraged
2
undismayed
2
unshakable
2
vigorous
1
brave
1
bright
1
brilliant
1
certain
1
clear
1
conspicuous
1
daring
1
dead set
1
energetic
10 years ago|2.7k views|share |citing 
APASmart Define. (2016). irresolute thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/irresolute/thesaurus/antonyms
ChicagoSmart Define. 2016. "irresolute thesaurus" https://smartdefine.org/irresolute/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, irresolute thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/irresolute/thesaurus/antonyms>.
MLASmart Define. "irresolute thesaurus" 4 March 2016. Web. 26 September 2026. <https://smartdefine.org/irresolute/thesaurus/antonyms>