precarious
Cross references: 1. dangerous pre.car.i.ous \pri-'kar-e--*s, -'ker-\ aj [L precarius obtained by entreaty, uncertain - more at PRAYER] archaic 1: depending on the will or pleasure of another 2: dependent on uncertain premises : DUBIOUS 3a: dependent on chance circumstances, unknown conditions, or uncertain de velopments 3b: characterized by a lack of security or stability that threatens with d anger - pre.car.i.ous.ly av