noun
life imprisonment; indefinite imprisonment
Legal term for a sentence of imprisonment without a fixed term; in practice, parole may be possible after a certain period.
裁判官は被告人に無期懲役の判決を言い渡した。
The judge handed down a sentence of life imprisonment to the defendant.
Compound of 無期 (indefinite, no fixed term) and 懲役 (imprisonment with labor).