clandestine

While that clandestine mode of communication undoubtedly helped keep Sinwar alive over the months of intense Israeli attacks on Gaza – and as he was being hunted by U.S. and Israeli intelligence – it also built long delays into negotiations taking place over a number of months, when the United States, intermediaries like Egypt and Qatar, as well as Sinwar’s own allies, awaited his response.

A reporter investigating clandestine timber-harvesting in a Mexican forest encounters a masked logger brandishing a chain saw.

Soleimani was the head of Iran’s notorious Quds Force, an elite, clandestine unit of Iran’s Revolutionary Guards Corps specialising in overseas operations.

Considering the history I just outlined it's not hard to imagine what Trump and Putin are discussing in these little clandestine chats.

However, López Obrador’s presidency also saw a record of more than 50,000 “disappeared” — mostly kidnapped victims presumed dead, often buried in clandestine graves.