173 entries under persistent topic. ×

2
disobedient(adjective, obstinate, insistent, dogged)
2
even(adjective, calm, strong, secure, solid)
2
habitual(adjective, dull, steady, stable, regular)
2
hard-shell(adjective, strong, hard, tough, severe)
2
liege(adjective, continue, honest, solid, pure)
2
on ice(expression, adjective, clear, strong, easy)
2
persisting(adjective, strong, tough, determined, steady)
2
stouthearted(adjective, obstinate, insistent, dogged)
2
unflappable(adjective, dull, set, solid, usual)
2
uniform(adjective, calm, strong, secure, solid)
2
unremitting(adjective, strong, determined, steady, resolute)
2
wholehearted(adjective, complete, total, solid, certain)
1
anal-retentive(adjective, obstinate, insistent, dogged)
1
ardent(adjective, close, correct, honest, solid)
1
bent on(expression, adjective, set, serious, resolute)
1
bloody-minded(adjective, obstinate, insistent, dogged)
1
buckled down(expression, adjective, serious, resolute)
1
chronic(adjective, continuous, endless, relentless)
1
continual(adjective, dull, determined, steady, stable)
1
driven(adjective, certain, restrained, serious, resolute)
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APASmart Define. (2016). firm thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/firm/thesaurus/synonyms
ChicagoSmart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, firm thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>.
MLASmart Define. "firm thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms>