impregnable : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: impregnable	by the DICT Development Group
3 results for impregnable
From WordNet (r) 3.0 (2006) [wn]:
impregnable adj immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection" Synonym(s): impregnable, inviolable, secure, strong, unassailable, unattackable capable of conceiving Synonym(s): conceptive, impregnable incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence" Synonym(s): impregnable, inexpugnable
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Impregnable \Impreg"nable\, 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. The man's affection remains wholly unconcerned and impregnable. --South. -- {Impreg"nableness}, n. -- {Impreg"na*bly}, adv.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Impregnable \Impreg"nable\, a. [See Impregnate.] (Biol.) Capable of being impregnated, as the egg of an animal, or the ovule of a plant.