impregnable

/ɪmˈpreɡnəbl/ (bre, ipa) · /ɪmˈpreɡnəbl/ (ame, ipa) · /im-ˈpreg-nə-bəl/ (ame, mw)

impregnable — 形容詞

  • impregnablepositive
  • more impregnablecomparative
  • most impregnablesuperlative

1. A place such as a castle, fortress, or military base that is impregnable has bee

1.形容詞B2
釋義

堅不可摧

防禦堅固,無法攻入

A place such as a castle, fortress, or military base that is impregnable has been built and defended so well that enemies cannot enter it or capture it.

例句

The old fortress had walls over five metres thick, making it virtually impregnable.

那座古老堡壘的城牆超過五公尺厚,幾乎堅不可摧。

collocation: virtually impregnable

During the siege, the citadel proved impregnable, and the enemy army eventually withdrew.

圍城期間,這座城堡證明瞭自己堅不可摧,敵軍最終撤退了。

collocation: proved impregnable

同義詞
  • unassailable

    Very close in meaning; both come from siege warfare. 'Unassailable' is slightly more common in figurative use.

  • impenetrable

    Emphasises that nothing can get through, whereas 'impregnable' emphasises that no one can take control.

  • invulnerable

    Suggests the place cannot be harmed at all, not just that it cannot be entered or captured.

反義詞
  • vulnerable

    Open to attack or capture; the direct opposite.

  • penetrable

    Can be entered or breached; less common in everyday use.

用法筆記

Often paired with 'virtually' or 'almost', especially in modern contexts where no defence is absolute. Common in historical or military writing about castles, forts, and fortified cities.

常見錯誤

I locked my diary in an impregnable drawer.
The castle was built on an impregnable mountaintop.
💡'impregnable' describes large fortifications or structures, not small everyday containers or locks.

2. A team, argument, or position that is impregnable is so strong that nobody can d

2.形容詞C1
釋義

無懈可擊

無法擊敗或推翻的

A team, argument, or position that is impregnable is so strong that nobody can defeat it, overcome it, or show that it is wrong.

例句

Liam's team built an impregnable defence last season, conceding only three goals at home.

Liam 的球隊上賽季建立了無懈可擊的防線,主場只失了三個球。

collocation: impregnable defence (sport)

The prosecutor's case seemed impregnable until a new witness came forward with fresh evidence.

檢察官的論據看似無懈可擊,直到一名新證人出現提供了新的證據。

collocation: seemed impregnable until

同義詞
  • unassailable

    Very similar; common in formal and competitive contexts. 'An unassailable lead' is a set phrase.

  • unbeatable

    More informal and direct; typical in everyday sports talk.

  • invincible

    Suggests total and permanent superiority, often in a dramatic or legendary sense.

反義詞
  • vulnerable

    Open to attack, criticism, or defeat.

  • shaky

    Informal; describes a position or lead that could easily be lost.

用法筆記

Common in sports journalism, political analysis, and business discussion. The focus is on a lead, record, or reputation that others find impossible to challenge or weaken.

常見錯誤

Her singing voice was impregnable.
Her argument was impregnable.
💡'impregnable' describes positions, arguments, and leads that cannot be overcome, not personal talents or skills.
The team is impregnable of losing.
The team's defence is impregnable.
💡'impregnable' is not followed by a preposition phrase with 'of'; it pairs with 'to' for the threat.