ironclad
🇺🇸
/ˈaɪərnklæd/
🇬🇧
/ˈaɪənklæd/
adjective
R
very strong and impossible to defeat or argue against
The contract is ironclad and guarantees her a portion of the profits.
契約は鉄壁で、彼女に利益の一部を保証します。
translation
破れない