Synonyms|330Antonyms|5|Broader|3Narrower|0Related|149
1
entrenched(adjective, firm, determined, usual, regular)
1
evident(set, certain, unquestionable, indisputable, unassailable)
1
fastidious(adjective, character, behavior, pedant)
1
finicky(adjective, character, behavior, pedant)
1
flattop
1
floating battery(expression, idiom, combatant)
1
fundamentalist
1
gunboat
1
hanging tough(expression, adjective, firm, determined, usual)
1
hard-nosed(adjective, severe, harsh, stiff, rigid)
1
helicopter
1
hell-bent
1
hidebound
1
hooded
1
imbricated(verb, covering)
1
impliable
1
impregnable
1
in armor
1
in complete steel(expression, idiom)
1
in harness
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APASmart Define. (2015). ironclad thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/ironclad/thesaurus/synonyms
ChicagoSmart Define. 2015. "ironclad thesaurus" https://smartdefine.org/ironclad/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, ironclad thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/ironclad/thesaurus/synonyms>.
MLASmart Define. "ironclad thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/ironclad/thesaurus/synonyms>