na-adjective, noun
Describes something that is not clearly understood, known, or visible. Often used in formal or written contexts.
原因はまだ不明です。
The cause is still unclear.
彼の意図は不明だ
His intentions are unclear.
noun which may take the genitive case particle 'no', suffix
Used as a suffix or with の to indicate that something is not known or identified, such as a person, place, or detail.
身元不明の遺体が見つかった。
An unidentified body was found.
作者不明の詩が残っている。
A poem by an unknown author remains.
noun
ignorance; lack of wisdom
Refers to a state of not knowing or lacking insight, often used in formal or literary contexts.
自分の不明を恥じる。
I am ashamed of my own ignorance.