noun
adjournment sine die; adjournment for an indefinite period
Formal term used in parliamentary or legislative contexts when a session is adjourned without setting a date to reconvene.
議会は無期休会に入った。
The assembly went into adjournment sine die.
審議未了のまま、国会は無期休会となった。
With deliberations unfinished, the Diet adjourned for an indefinite period.
Compound of 無期 (indefinite, no fixed period) and 休会 (adjournment, recess). The term is a direct translation of the English legal phrase 'adjournment sine die'.