Impregnable

4 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Impregnable \Im*preg"na*ble\, a. [F. imprenable; pref. im- not +
     prenable pregnable, fr. prendre to take, L. prehendere. See
     {Comprehend}, {Get} to obtain.]
     Not to be stormed, or taken by assault; incapable of being
     subdued; able to resist attack; unconquerable; as, an
     impregnable fortress; impregnable virtue.


     [1913 Webster]
  
           The man's affection remains wholly unconcerned and
           impregnable.                             --South.
     -- {Im*preg"na*ble*ness}, n. -- {Im*preg"na*bly}, adv.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Impregnable \Im*preg"na*ble\, a. [See Impregnate.] (Biol.)
     Capable of being impregnated, as the egg of an animal, or the
     ovule of a plant.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  impregnable
       adj 1: able to withstand attack; "an impregnable fortress";
              "fortifications that made the frontier inviolable"
              [syn: {inviolable}, {secure}, {strong}, {unassailable},
               {unattackable}]
       2: impossible to take by storm [syn: {inexpugnable}]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  42 Moby Thesaurus words for "impregnable":
     deathless, defended, guarded, immortal, impenetrable, imperishable,
     incontestable, incorruptible, indelible, indestructible,
     indomitable, ineffaceable, ineradicable, inexpugnable,
     inextinguishable, insuperable, invincible, inviolable,
     invulnerable, irresistible, mighty, nonperishable, overpowering,
     overwhelming, protected, quenchless, resistless, safe, safeguarded,
     secure, shielded, unassailable, unbeatable, unconquerable,
     undampable, undefeatable, undestroyable, undying, unquenchable,
     unsubduable, unsurmountable, unyielding