61 entries under insistent topic. ×

4
set(verb, adjective, strong, tough, firm)
4
severe(adjective, persistent, obstinate, dogged)
3
intractable(adjective, tough, firm, unreasonable, grim)
3
persistent(adjective, obstinate, dogged)
3
refractory(adjective, persistent, obstinate, dogged)
3
single-minded(adjective, tough, firm, unreasonable, grim)
3
strict(adjective, hard, persistent, rigid, obstinate)
3
uncooperative(adjective, mean, hard, persistent, rigid)
3
unflinching(adjective, resolution, persistent, obstinate)
2
recalcitrant(tough, firm, persistent, obstinate, stubborn)
1
anal-retentive(adjective, persistent, obstinate, dogged)
1
bloody-minded(adjective, persistent, obstinate, dogged)
1
cantankerous(adjective, persistent, obstinate, dogged)
1
confirmed(adjective, persistent, obstinate, dogged)
1
contrary(adjective, persistent, obstinate, dogged)
1
contumacious(adjective, persistent, obstinate, dogged)
1
cussed(adjective, persistent, obstinate, dogged)
1
defiant(adjective, persistent, obstinate, dogged)
1
demanding(adjective, persistent, obstinate, dogged)
1
disobedient(adjective, persistent, obstinate, dogged)
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APASmart Define. (2015). iron thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, iron thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>.
MLASmart Define. "iron thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms>