形容词
1. 秘密的;鬼鬼祟祟的;偷偷摸摸的
A surreptitious action is done secretly.
1. conducted with or marked by hidden aims or methods
e.g. clandestine intelligence operations
cloak-and-dagger activities behind enemy lines
hole-and-corner intrigue
secret missions
a secret agent
secret sales of arms
surreptitious mobilization of troops
an undercover investigation
underground resistance
Synonym: clandestinecloak-and-daggerhole-and-corner(a)hugger-muggerhush-hushsecretundercoverunderground
2. marked by quiet and caution and secrecy
taking pains to avoid being observed
e.g. a furtive manner
a sneak attack
stealthy footsteps
a surreptitious glance at his watch