not to speak of

not to speak of

In addition to or as well as what's been discussed. Typically used to mention an additional item when listing things that one considers negative. I've already got to spend three hours in the car running errands, not to speak of the hour and a half it will take to pick up the kids from school. They have two massive houses in the city, not to speak of their vacation home by the beach.See also: not, of, speak