unimpregnable

词形变化

more unimpregnable 比较级 most unimpregnable 最高级

释义与例句

adj.
  1. 1.

    Not impregnable; capable of being pierced or assailed.

  2. 2.

    Incapable of being impregnated; impermeable or infertile.

    The compound rendered the surface of the vessel unimpregnable.

    Despite fertility treatment, one out of three women in the study remained unimpregnable.

词源

From un- + impregnable.

来源：wiktionary