It's dangerous to swim in the river without an adult present. The dangerous situation made everyone feel nervous. Driving at high speed on a rainy day is very dangerous. That old building is in a dangerous state and might collapse at any time. Handling chemicals without proper protection can be extremely dangerous. The dangerous criminal was finally caught by the police after a long chase. Hiking alone in the mountains can be dangerous, especially in bad weather. Playing with fire is always dangerous and can cause serious accidents. The dangerous curve on the road requires drivers to be extra careful. The dangerous animal roared loudly, scaring everyone nearby. Going out at night in that area can be dangerous due to high crime rates. The dangerous job of defusing bombs requires great courage and skill. Skiing on unmarked slopes is dangerous as there may be hidden hazards. The dangerous electrical wires need to be repaired immediately. Climbing the steep cliff without proper equipment is highly dangerous. The dangerous storm brought strong winds and heavy rain, damaging many houses. Eating expired food can be dangerous to your health. The dangerous game they were playing could have led to serious injuries. Walking on ice-covered roads is dangerous because you might slip and fall. The dangerous mission was successfully completed by the special forces.