Agonal is a term that refers to the final stages of a dying process and the related struggling or extreme suffering before death. Synonyms of agonal include terminal, dying, last gasp, and final breath. Other similar terms include death throes, final moments, and final struggles. These words can be used interchangeably to describe the physical, emotional, and mental distress a person experiences when death approaches. While agonal is most commonly used in medical or scientific contexts, its synonyms can be used more broadly in creative writing or storytelling to describe a character's final moments or the end of a tragic event.