LEARNit Dictionary
cast-iron
adjective
/ˌkɑːst ˈaɪən/
UK
/ˌkæst ˈaɪərn/
US
1
made of cast iron
چدنی
2
very strong or certain; that cannot be broken or fail
محکم, شکستناپذیر, ناگسستنی, قطعی
a
cast-iron guarantee/promise
a
cast-iron excuse/alibi
compare
ironclad