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: perilous, precarious, touch-and-go • Similar to: dangerous, unsafe • Derivationally related forms: precariousness (for: precarious), peril (for: perilous), perilousness (for: perilous)