The phrase "treacherous roads" means that the roads are dangerous, risky, or not safe to travel on.
Sentences with «treacherous roads»
It's sure footedness makes this one of the best vehicles I have driven on treacherous roads, whether snow is 2» or 10» deep. (cars.com)
The consequences of the failure to do so were exemplified in a recent case out of Ontario, Kelly v. Perth (County), 2014 ONSC 4151, where a young woman suffered catastrophic injuries after she came upon treacherous road conditions and lost control of her vehicle. (murphybattista.com)
This seems like an especially treacherous road for an organization such as Rainforest Alliance whose stated mission is conserving biodiversity. (coffeehabitat.com)