have no heart for

have no heart for (something)

To not have the emotional resolve (for something); to be unable to do something, especially that which is or seems callous or unsympathetic. I just had no heart for a deep conversation about how I don't love her anymore. How could you fire someone the day after their father died? I would have no heart for that.
See also: have, heart, no

have no heart for

Also, not have the heart for. Lack enthusiasm for, as in After the dog died he had no heart for taking long walks, or I should go through the family albums, but I don't have the heart for it. [Mid-1600s] Also see heart in it.
See also: have, heart, no