English

Definition of impregnable adjective from the Oxford Advanced Learner's Dictionary

     

    impregnable

     adjective
    adjective
    BrE BrE//ɪmˈpreɡnəbl//
     
    ; NAmE NAmE//ɪmˈpreɡnəbl//
     
     
    jump to other results
  1. 1an impregnable building is so strongly built that it cannot be entered by force an impregnable fortress
  2. 2strong and impossible to defeat or change synonym invincible The team built up an impregnable 5–1 lead. the seemingly impregnable Nazi regime
  3. Word Origin late Middle English: from Old French imprenable, from in- ‘not’ + prendre ‘take’ (from Latin prehendere). The current spelling arose in the 16th cent., perhaps influenced by Old French variants.
See the Oxford Advanced American Dictionary entry: impregnable