This is the 9336th most frequent French word.
dangereuses
Dangerous.
The adjective 'dangereuses' is modifying the plural noun 'routes', agreeing in gender and number.
Les routes montagneuses peuvent être dangereuses pendant l'hiver.
Mountain roads can be dangerous during winter.
The adjective 'dangereuses' describes the effects of certain practices, emphasizing negative consequences.
Ces pratiques sont dangereuses pour la santé.
These practices are dangerous for health.
The adjective 'dangereuses' characterizes 'situations,' relating to potentially harmful circumstances.