impenetrably

Pronunciation:  US [ɪmˌpɛnɪtrə'blɪ] UK [ɪmˌpenɪtrə'blɪ]
  • adv.Yan-yan encryption; Cannot enter the
  • WebStubborn; Cannot pass; Feel-free
adv.
1.
Cannot enter the
2.
Held, under a strict secret