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impregnable    音标拼音: [ɪmpr'ɛgnəbəl]
a. 无法攻取的,要塞坚固的,难攻陷的,坚定的

无法攻取的,要塞坚固的,难攻陷的,坚定的

impregnable
adj 1: immune to attack; incapable of being tampered with; "an
impregnable fortress"; "fortifications that made the
frontier inviolable"; "a secure telephone connection"
[synonym: {impregnable}, {inviolable}, {secure}, {strong},
{unassailable}, {unattackable}]
2: capable of conceiving [synonym: {conceptive}, {impregnable}]
3: incapable of being overcome, challenged or refuted; "an
impregnable argument"; "impregnable self-confidence" [synonym:
{impregnable}, {inexpugnable}]

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]


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]


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