nonviable (adjective)

1. According to Greek mythology, Medusa's head was nonviable and could not give birth to life.

2. The artist created a sculpture of a nonviable seed symbolizing the fragility of life.

3. In the movie, the scientist experimented with a nonviable disease strain that failed to spread.

4. The designer showcased a collection of avant-garde pieces featuring nonviable materials like wilted flowers and decaying leaves.