word or concise phrase to mean the opposite of "ongoing" [closed]

Solution 1:

Time-limited

The exhibitions that were included were time-limited, short-term installations, rather than long-term installations or re-installations. (Source PDF)

On this basis we have created a call out for anyone who would like to submit work for our time-limited exhibition in August 2021. (Source)

Most exhibitions I’ve seen at galleries or museums are split into “ongoing” and “time-limited”. Usually when the time-limited exhibitions are shown on a website, they aren’t labeled; in place of ‘ongoing’ it says ‘through date’.