dangerous
dan.ger.ous \'da-nj-(*-)r*s\ aj 1: exposing to or involving danger 2: able or likely to inflict injury ANGEROUS applies to something that may cause harm or loss unless dealt with carefully; HAZARDOUS implies great and continuous risk of harm or failure and small chance of successfully avoiding disaster; PRECARIOUS suggests both insecurity and uncertainty; PERILOUS strongly implies the immediacy of danger; RISKY often applies to a known and accepted danger - dan.ger.ous.ly av SYN syn HAZARDOUS, PRECARIOUS, PERILOUS, RISKY: D
Webster's English Dictionary