hole-and-corner

(s) relating to the peripheral and unimportant aspects of life
- "a hole-and-corner life in some obscure community"- H.G.Wells
hole-in-corner,
(s) conducted with or marked by hidden aims or methods
- 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
clandestine, cloak-and-dagger, hush-hush, undercover, hugger-mugger, secret, surreptitious, underground,

hole-in-corner clandestine cloak-and-dagger hush-hush undercover hugger-mugger secret surreptitious underground