見みず知しらず

noun which may take the genitive case particle 'no'

strange; unfamiliar; unknown

Used as a prenominal modifier (～の) to describe a person or thing one has never seen or met before. Often implies a complete lack of prior acquaintance.

• 見みず知しらずの人ひとから突とつ然ぜん声こえをかけられた。

  I was suddenly spoken to by a complete stranger.

• 見みず知しらずの土と地ちで道みちに迷まよってしまった。

  I got lost in an unfamiliar place.

noun

stranger; unfamiliarity

Used as a noun to refer to a person one has never met, or the state of being unknown. Often appears in set phrases like 見ず知らずの他人.

• 彼かれは私わたしにとってはまったくの見みず知しらずだ。

  He is a total stranger to me.

• 見みず知しらずの他た人にんを家いえに入いれてはいけない。

  Don't let a complete stranger into your house.