adjective. Associated with or relating to great pain, especially the agony of death.

Relating to or occurring during the agony or death-struggle. See the extract.

adjective. Of or pertaining to the pain of death

adjective. pertaining to or associated with agony (especially death agonies)

"Roseborough was inspired by classical "agonal" sculpture -- which deals with death and the dying -- and contemporary images of war casualties for his print and video series, which imagines a video game that depicts soldiers with mortal wounds."