Princeton's WordNet

1. bowed down(p), loaded down(p), overburdened, weighed down(p)(adj)

   heavily burdened with work or cares

   "bowed down with troubles"; "found himself loaded down with responsibilities"; "overburdened social workers"; "weighed down with cares"

2. burdened, heavy-laden, loaded down(adj)

   bearing a physically heavy weight or load

   "tree limbs burdened with ice"; "a heavy-laden cart"; "loaded down with packages"