1. An illegal, secret, or hidden path or route, typically used for smuggling, illegal border crossing, or other unlawful activities
Smugglers used a clandestine trail to transport goods across the border.
Contrabandistas usavam uma trilha clandestina para transportar mercadorias pela fronteira.
2. An undocumented or secret route used for escaping detection or surveillance
Refugees followed a clandestine trail through the mountains.
Refugiados seguiram uma trilha clandestina pelas montanhas.