trivial issue

noun

1. A problem or matter that is very small, unimportant, or not worth worrying about.

   B1

   countable

   • "This is a trivial issue, so don't spend too much time on it."B1
   • "They argued about a trivial issue instead of focusing on the real problem."B2
   • "The meeting was delayed because of a trivial issue with the projector."A2