资料来源 : pyDict

不能渗透的,不渗透性的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Impermeable \Im*per"me*a*ble\, a. [Pref. im- not + permeable:
   cf. F. imperm['e]able, L. impermeabilis.]
   Not permeable; not permitting passage, as of a fluid. through
   its substance; impervious; impenetrable; as, India rubber is
   impermeable to water and to air. -- {Im*per"me*a*ble*ness},
   n. -- {Im*per"me*a*bly}, adv.

资料来源 : WordNet®

impermeable
     adj : preventing especially liquids to pass or diffuse through;
           "impermeable stone"; "an impermeable layer of scum"; "a
           coat impermeable to rain" [ant: {permeable}]