Exact Match:
- ironclad
- a wooden warship of the 19th century that is plated with iron or steel armor
- inflexibly entrenched and unchangeable; "brassbound traditions"; "brassbound party loyalists"; "an ironclad rule"
- sheathed in iron plates for protection
Synonyms:
- armed cap-a-pie,
- armor-plated,
- armored,
- constant,
- dour,
- firm,
- fixed,
- fundamentalist,
- hard,
- hidebound,
- immovable,
- immutable,
- impliable,
- in armor,
- in complete steel,
- in harness,
- inalterable,
- inexorable,
- inflexible,
- invariable,
- iron,
- ironbound,
- ironhanded,
- loricate,
- loricated,
- mailclad,
- mailed,
- muscle-bound,
- obdurate,
- obstinate,
- orthodox,
- panoplied,
- procrustean,
- purist,
- puristic,
- puritan,
- puritanic,
- relentless,
- rigid,
- rigorist,
- rigoristic,
- rigorous,
- rockbound,
- stiff,
- straightlaced,
- straitlaced,
- stubborn,
- unalterable,
- unbending,
- uncompromising,
- unmodifiable,
- unrelenting,
- unyielding