a swamp
a situation characterized by lack of progress or activity
the economic slough of the interwar years
shed or remove (a layer of dead skin)
a snake sloughs off its old skin
exfoliate once a week to slough off any dry skin
(of soil or rock) collapse or slide into a hole or depression
an eternal rain of silt sloughs down from the edges of the continents
the dropping off of dead tissue from living flesh
the drugs can cause blistering and slough