Definition of unpenetrable in English:

unpenetrable

adjective (ˌ)ʌnˈpɛnɪtrəbl

Late Middle English; earliest use found in The Book of the Foundation of St. Bartholomew's Church in London. From un- + penetrable.

adjective(ˌ)ʌnˈpɛnɪtrəbl

Late Middle English; earliest use found in The Book of the Foundation of St. Bartholomew's Church in London. From un- + penetrable.

词汇	unpenetrable
释义	Definition of unpenetrable in English: unpenetrable adjective (ˌ)ʌnˈpɛnɪtrəbl Incapable of being penetrated; impenetrable. Origin Late Middle English; earliest use found in The Book of the Foundation of St. Bartholomew's Church in London. From un- + penetrable. Definition of unpenetrable in US English: unpenetrable adjective(ˌ)ʌnˈpɛnɪtrəbl Incapable of being penetrated; impenetrable. Origin Late Middle English; earliest use found in The Book of the Foundation of St. Bartholomew's Church in London. From un- + penetrable.
随便看	colluded colluder colluder colludes collude with colluding collusion collusioner collusive collusive collusively collusively colluvial colluvial colluvium colly colly-clogger collyer collying collyria collyrium collywobbles collywobbless Colman, Ronald colman's bird