Share this entry


Synonyms of impregnable in English:


  • 1 such a castle must have been impregnable
    invulnerable, impenetrable, unattackable, unassailable, inviolable, secure, strong, stout, safe, well fortified, well defended;
    [Antonyms] vulnerable
  • 2 an impregnable parliamentary majority
    [Antonyms] vulnerable
  • 3 as a working theory, this is impregnable
    [Antonyms] flawed
  • Definition of impregnable in:

    Share this entry


    What do you find interesting about this word or phrase?

    Comments that don't adhere to our Community Guidelines may be moderated or removed.

    Get more from Oxford Dictionaries

    Subscribe to remove adverts and access premium resources