1 affording no ease or reassurance; "a precarious truce" [syn: unstable]
2 fraught with danger; "dangerous waters"; "a parlous journey on stormy seas"; "a perilous voyage across the Atlantic in a small boat"; "the precarious life of an undersea diver"; "dangerous surgery followed by a touch-and-go recovery" [syn: parlous, perilous, touch-and-go]
3 dangerously insecure; "a precarious footing on the ladder"
4 not secure; beset with difficulties; "a shaky marriage" [syn: shaky]
ambiguous, borderline, chancy, critical, dangerous, delicate, desultory, dicey, difficult, doubtful, dubious, equivocal, hairy, hazardous, iffy, indecisive, infirm, insecure, insubstantial, on slippery ground, on thin ice, open, perilous, problematic, provisional, questionable, risky, sensitive, shaky, shifting, shifty, slippery, slippy, temporary, tentative, ticklish, touch-and-go, touchy, treacherous, tricky, uncertain, undependable, unfaithworthy, unpredictable, unreliable, unsettled, unsolid, unsound, unstable, unsteadfast, unsteady, unsubstantial, unsure, untrustworthy