底知れず

そこしれず

bottomless, very deep

人知れぬ

ひとしれぬ

secret, hidden, unseen, inward

数知れぬ

countless; innumerable

底知れない

bottomless; unlimited; immeasurable; inexhaustible

やも知れぬ

やもしれぬ

may, might, perhaps, may be, possibly

言い知れぬ

いいしれぬ

indescribable, inexpressible

周知徹底

しゅうちてってい

dissemination, spreading of information

知らぬ存ぜぬ

しらぬぞんぜぬ

complete ignorance (usu. in reference to feigning); lack of knowledge

知らぬ顔

しらぬかお

pretending not to know, feigning ignorance

誰知らぬ

だれしらぬ

nobody knows

見知らぬ

みしらぬ

strange, unfamiliar, unknown

素知らぬ

そしらぬ

feigned, pretending

底入れ

そこいれ

bottoming out (of prices)

底割れ

そこわれ

situation where the bottom has dropped out

素知らぬ顔

そしらぬかお

pretending not to recognize (recognise), feigned ignorance

知らぬが仏

しらぬがほとけ

Ignorance is bliss

知らぬ間に

before one knows it; before one realises; without one's knowledge; without noticing

見も知らぬ

みもしらぬ

completely unknown (usu. of people); unfamiliar; complete (stranger)

底

てい そこ

bottom, sole