par·lous 
(pärləs)
(pärləs)adj.
1. Perilous; dangerous: "starting from scratch in parlous economic times" (Madalynne Reuter).
2. Obsolete Dangerously cunning.
[Middle English, variant of perilous, perilous, from peril, peril; see PERIL.]
parlous·ly adv.