Synonyms for impregnable
ɪmˈprɛg nə bəlim·preg·nable

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. impregnable, inviolable, secure, strong, unassailable, unattackableadjective

   immune to attack; incapable of being tampered with

   "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"

   Synonyms:
   conceptive, potent, watertight, dependable, safe, absolute, substantial, inviolate, untroubled, inviolable, unshakable, untouchable, warm, good, stiff, inexpugnable, unafraid, infrangible, unattackable, unassailable, bulletproof, firm, solid, strong, sacrosanct, hard, secure

   Antonyms:
   vulnerable, conquerable, sterile, infertile, unfertile

2. conceptive, impregnableadjective

   capable of conceiving

   Synonyms:
   inviolable, conceptive, inexpugnable, strong, unattackable, unassailable, secure

   Antonyms:
   infertile, conquerable, sterile, vulnerable, unfertile

3. impregnable, inexpugnableadjective

   incapable of being overcome, challenged or refuted

   "an impregnable argument"; "impregnable self-confidence"

   Synonyms:
   inviolable, conceptive, inexpugnable, strong, unattackable, unassailable, secure

   Antonyms:
   sterile, infertile, unfertile, vulnerable, conquerable

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. impregnableadjective

   Synonyms:
   unassailable, inexpugnable, not to be taken by assault, not to be stormed, secure from capture, tenable against all odds

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "impregnable":

   unassailable, fortified

How to pronounce impregnable?

How to say impregnable in sign language?

Usage in printed sourcesFrom: 

1. 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Words popularity by usage frequency

How to use impregnable in a sentence?

1. Hugo Black:

   The First Amendment has erected a wall between church and state. That wall must be kept high and impregnable. We could not approve the slightest breach.

2. Henrik Ibsen:

   Ah, I fancy it is just the same with most of what you call your emancipation. You have read yourself into a number of new ideas and opinions. You have got a sort of smattering of recent discoveries in various fields -- discoveries that seem to overthrow certain principles which have hitherto been held impregnable and unassailable. But all this has only been a matter of intellect, Miss West -- superficial acquisition. It has not passed into your blood.

3. Zelda:

   Most people hew the battlements of life from compromise, erecting their impregnable keeps from judicious submissions, fabricating their philosophical drawbridges from emotional retractions and scalding marauders in the boiling oil of sour grapes.