- Definitions|1
- Thesaurus|487
- Abbreviations|0
| flagship(noun, vessel, boat, ship, combatant) | |
| flotilla leader(vessel, boat, ship, transportation) | |
| front runner(vessel, boat, ship, transportation) | |
| inexorable(adjective, cruel, pitiless) | |
| invariable(adjective, set, hard, stiff, inflexible) | |
| lead ship(vessel, boat, ship, transportation) | |
| mother ship(vessel, boat, ship, transportation) | |
| hard | |
| immutable(adjective, flexible) | |
| inalterable(adjective, inflexible, flexible) | |
| rigorous | |
| stiff(adjective, set, hard, severe, harsh) | |
| stubborn(adjective, firm, determined, usual, regular) | |
| uncompromising(adjective, fixed, rigid) | |
| armored | |
| certain(adjective, set, determined, usual, regular) | |
| constant | |
| definite(adjective, firm, determined, usual, regular) | |
| loricated | |
| painstaking(adjective, character, behavior, pedant) |
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| APA | Smart Define. (2015). ironclad thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ironclad/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ironclad thesaurus" https://smartdefine.org/ironclad/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, ironclad thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ironclad/thesaurus/synonyms>. |
| MLA | Smart Define. "ironclad thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/ironclad/thesaurus/synonyms> |