impregnable

im·preg·na·ble

adj \im-ˈpreg-nə-bəl\

Definition of IMPREGNABLE

1

: incapable of being taken by assault : unconquerable <an impregnable fortress>

2

: unassailable; also : impenetrable <impregnable walls>

— im·preg·na·bil·i·ty \(ˌ)im-ˌpreg-nə-ˈbi-lə-tē\ noun

— im·preg·na·ble·ness \im-ˈpreg-nə-bəl-nəs\ noun

— im·preg·na·bly \-blē\ adverb

Examples of IMPREGNABLE

1. <an impregnable fortress that had foiled one invader after another over the centuries>
2. <the castle's supposedly impregnable walls>

Origin of IMPREGNABLE

Middle English imprenable, from Middle French, from in- + prenable vulnerable to capture, from prendre to take — more at prize

First Known Use: 15th century

Related to IMPREGNABLE

Synonyms: bulletproof, invincible, indomitable, insuperable, insurmountable, invulnerable, unbeatable, unconquerable, unstoppable

Antonyms: superable, surmountable, vincible, vulnerable

Related Words: inviolable, unassailable, unbreachable, untouchable; armored, defended, guarded, protected, safe, safeguarded, secure, shielded; unbeaten, unbowed, unconquered, undefeated, unsubdued

Near Antonyms: exposed, imperiled (or imperilled), insecure, liable, open, susceptible, unguarded, unprotected, unsafe; defenseless, helpless, powerless, weak

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