What does 未知 mean?
未知 is a Japanese noun meaning “not yet known” in English. It is written as 未知 in kanji, みち in hiragana, and michi in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
ソフイーは未知の差し出し人からまた手紙が来るのを心待ちにしていた。
Sophie had been looking forward to getting another letter from the unknown sender.