えんき延期enki
1.

The act of delaying a scheduled event or deadline to a later time or date, typically to accommodate unforeseen circumstances or changes in plans.

2.

The process of extending the timeframe originally set for a task or activity, resulting in a revised timeline for its completion.

3.

An official decision to push back a planned occurrence, such as a meeting, performance, or deadline, often accompanied by a new schedule for the rescheduled event.

Example:

私たちは会合を延期しなければならなかった。

むきえんき無期延期mukienki
1.

The act of postponing something without setting a specific date for its rescheduling.

2.

A situation where an event or deadline is delayed permanently or for an unspecified amount of time, lacking a predetermined timeline for when it may take place again.

3.

The condition of deferring an action or decision indefinitely, creating uncertainty about its future occurrence.

Example:

ゲームは無期延期になった。