Anticipatory grief
The five stages namely, denial, anger, bargaining, depression, and acceptance proposed by Elisabeth Kübler-Ross in her model of grief describe the process by which people undergo after a loss. Anxiety, dread, guilt, helplessness, hopelessness, and feelings of being overwhelmed are also common. However, it is important to note that anticipatory grief is not simply normal grief begun earlier.
Delayed grief
The terms delayed grief and unresolved grief are variations of grieving after a loss. The meaning of "unresolved grief" is any aspect of grieving that has yet to be resolved.