a black day

a black day

A day that marks a sad or unfortunate event. When we heard the news that David Bowie had died, we knew it was going to be a black day for all of his loyal fans.
See also: black
Farlex Dictionary of Idioms.

a black ˈday (for somebody)

a day when something sad, unpleasant or disastrous happens (to somebody): It was a black day for this area when the local steel factory closed down.
See also: black
Farlex Partner Idioms Dictionary
See also:
  • not (one's) day
  • not one's day, this is
  • not someone's day
  • just another day at the office
  • from day to day
  • make a day of (doing something)
  • make a day of doing
  • make a day of it
  • day out
  • day by day