also: むいむりょう
na-adjective, noun which may take the genitive case particle 'no', noun
A literary or formal term for a state of having nothing to do and feeling weary or listless; often used in written or elevated contexts.
無為無聊の日々を送る。
I spend my days in idle boredom.
彼は無為無聊に耐えかねて、新しい趣味を始めた。
Unable to bear the tedium, he started a new hobby.
A yojijukugo (four-character compound) combining 無為 (idleness, doing nothing) and 無聊 (boredom, ennui). The exact historical derivation is uncertain, but it is a literary coinage expressing the state of having nothing to do and feeling listless.