"surrepticious" is probably misspelled. Trying surreptitious instead Definition of surreptitious
1
[ adjective ] marked by quiet and caution and secrecy; taking pains to avoid being observed

Examples

"a furtive manner" "a lurking prowler" "a sneak attack" "stealthy footsteps" "a surreptitious glance at his watch" "someone skulking in the shadows"

2
[ adjective ] conducted with or marked by hidden aims or methods

Examples

"clandestine intelligence operations" "cloak-and-dagger activities" "secret missions" "surreptitious mobilization of troops" "an undercover investigation" "underground resistance"

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