ironclad
ahy ern klad
- n a wooden warship of the 19th century that is plated with iron or steel armor
- s sheathed in iron plates for protection
- s inflexibly entrenched and unchangeable
an ironclad rule
- That's not ironclad for organic beef some companies might use antimicrobials but generally the animals are supplement-free Environmental Impact: Living with the Land.
- He insists he has "no plans" to run for office, a formulation that is ironclad only until it isn't.
- Final, ironclad proof of Snuppy's provenance would involve showing that the dog's mitochondrial DNA matches that of his egg donor.