impregnable
🇺🇸
/ɪmˈpreɡnəbl/
🇬🇧
/ɪmˈpreɡnəbl/
adjective
R
A building or place that is so strong it cannot be broken into or captured.
The castle seemed impregnable, standing tall and strong against the storm.
城堡似乎坚不可摧，高耸而坚固地抵御着暴风雨。
R
A position, argument, or belief that is so strong it cannot be defeated or changed.
The team's strategy was so well planned that it seemed impregnable.
团队的策略计划得如此周密，似乎坚不可摧。
translation
坚不可摧, 无懈可击