1
inflexible(adjective, stable, sure, balanced, standed)
1
invariable(adjective, stable, stiff, balanced, stead)
1
iron-bound(adjective, stable, sure, balanced, standed)
1
iron-handed(adjective, stable, sure, balanced, standed)
1
iron bound(adjective, stable, sure, balanced, standed)
1
iron handed(adjective, stable, sure, balanced, standed)
1
ironside(noun, person, resolute, decide)
1
lasting(adjective, stable, stiff, balanced, stead)
1
lingering(adjective, stable, stiff, balanced, stead)
1
manful(adjective, solve, decided, resolved)
1
motivated(adjective, ambition, goal, target)
1
nachhaltig(adjective, stable, stiff, balanced, stead)
1
non-fluctuating(adjective, stable, stiff, balanced, stead)
1
not easily moved(adjective, stable, sure, balanced, standed)
1
not easily upset(adjective, stable, sure, balanced, standed)
1
on one's toes(adjective, solve, decided, resolved)
1
out-front(adjective, solve, decided, resolved)
1
out front(adjective, solve, decided, resolved)
1
outright(adjective, ambition, goal, target)
1
overwhelming(adjective, solve, decided, resolved)
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APASmart Define. (2013). vacillant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/vacillant/thesaurus/antonyms
ChicagoSmart Define. 2013. "vacillant thesaurus" https://smartdefine.org/vacillant/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2013, vacillant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/vacillant/thesaurus/antonyms>.
MLASmart Define. "vacillant thesaurus" 28 June 2013. Web. 25 September 2026. <https://smartdefine.org/vacillant/thesaurus/antonyms>