sine die (adverb)

1. The meeting was supposed to end sine die, but it turned into a never-ending joke when the participants couldn't stop laughing.

2. Fans of the anime eagerly awaited the next season, but the release date was sine die, leaving them disappointed.

3. The author left the ending of the novel sine die, keeping readers in suspense until the next book in the series.

4. The cartoon series suddenly ended sine die, leaving children and adults alike wondering what would happen to their favorite characters.