- Worden Complicated grief reactions : Worden Complicated grief reactions refer to grief reactions or mourning processes that are abnormal in the sense of being deviant and unhealthy, thereby overwhelming bereaved persons, leading to maladaptive behavior, and inhibiting progress toward satisfactory outcomes in mourning; Worden (2002) identified four (4) types: chronic, delayed, exaggerated, or masked grief reactions Complicated grief reactions is also called Complicated mourning.