83 entries under persistent topic. ×

3
unflinching(adjective, resolution, obstinate, insistent)
2
dogged(adjective, mean, strong, hard, tough)
2
recalcitrant(tough, firm, obstinate, stubborn)
2
solid(adjective, set, strong, hard, tough)
1
anal-retentive(adjective, obstinate, insistent, dogged)
1
bloody-minded(adjective, obstinate, insistent, dogged)
1
bound(verb, adjective, strong, tough, firm)
1
cantankerous(adjective, obstinate, insistent, dogged)
1
confirmed(adjective, obstinate, insistent, dogged)
1
contrary(adjective, obstinate, insistent, dogged)
1
contumacious(adjective, obstinate, insistent, dogged)
1
cussed(adjective, obstinate, insistent, dogged)
1
defiant(adjective, obstinate, insistent, dogged)
1
demanding(adjective, obstinate, insistent, dogged)
1
disobedient(adjective, obstinate, insistent, dogged)
1
exacting(adjective, obstinate, insistent, dogged)
1
froward(adjective, obstinate, insistent, dogged)
1
hard-line(adjective, obstinate, insistent, dogged)
1
hard-shell(adjective, obstinate, insistent, dogged)
1
hard-shelled(adjective, obstinate, insistent, dogged)
11 years ago|13k views|share |citing 
APASmart Define. (2015). iron thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, iron thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>.
MLASmart Define. "iron thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms>