Adjective: surreptitious ,sur-up'ti-shus [N. Amer], ,sú-rup'ti-shus [Brit]
- Marked by quiet and caution and secrecy; taking pains to avoid being observed
"a surreptitious glance at his watch";
- furtive, sneak, sneaky, stealthy
- Conducted with or marked by hidden aims or methods
"surreptitious mobilization of troops";
- clandestine, cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, secret, undercover, underground
Encyclopedia: Surreptitious