noun which may take the genitive case particle 'no', noun
unknown; not yet known; strange
Describes something not yet encountered, understood, or experienced; often used in formal or written contexts. Antonym: 既知 (known).
Antonyms: 既知
未知のウイルスが発見された。
An unknown virus was discovered.
彼は未知の世界に足を踏み入
He stepped into an unknown world.
既知 means 'already known' or 'familiar', the direct opposite of 未知.
Compound of 未 (mi, 'not yet') and 知 (chi, 'know'). The reading みち is the on'yomi of both characters.