0 in a way that is planned or done in secret, especially when something is not officially allowed: --
Officials from both sides met clandestinely for negotiations.
The refugees entered the country clandestinely, on foot by mountain paths.
The agency clandestinely worked with police and security services.
The terror network is believed to operate clandestinely in more than 60 nations.
I swam clandestinely at night in the school pool.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
clandestinely