sickness unto death

From the book The Sickness Unto Death (1849) by Søren Kierkegaard (1813-1855).

sickness unto death (countable and uncountable, plural sicknesses unto death)

1. (philosophy, existentialism, Kierkegaardianism) Personal despair over the disquieting circumstances of human existence.
   • 1990 April 1, Anatole Broyard, “Good Books about Being Sick”, in New York Times, retrieved 19 July 2015:

     Kafka's illnesses are more existential than physical; they are like Kierkegaard's "sickness unto death."

2. (by extension) Despair, profound discontent, or a similar persistent debilitating malaise of the mind, spirit, or soul that produces a decline in mental, physical, or societal health and that may culminate in death or dissolution.
   • 1987 September 13, Donal Henahan, “Music View: Our Orchestras are Splintering”, in New York Times, retrieved 19 July 2015:

     Still, many observers of the orchestra, including some players themselves, continue to detect a malaise in the institution. Many critics, especially those deeply involved as composers and performers of new music, diagnose the trouble as a sickness unto death.

   • 1993 December 1, Brian Appleyard, “Censorship is a dirty word, but unrelentingly violent films have made it a necessary evil”, in The Independent, UK, retrieved 19 July 2015:

     These films . . . are evidence of a deep cultural malaise. The need to make them and the desire to consume them are symptoms of a contemporary sickness unto death.

   • 2007, Frederick Turner, Culture of Hope: A New Birth of the Classical Spirit, →ISBN, page 1:

     ur "high" or "academic" or "avant-garde" culture is in a state of crisis. This crisis is not a healthy one, but a sickness unto death, a decadence that threatens to destroy our society.