Synonyms:
- Machiavellian,
- Machiavellic,
- acute,
- arch,
- artful,
- astute,
- back-door,
- backstairs,
- cagey,
- canny,
- catlike,
- catty,
- clandestine,
- clever,
- closet,
- covert,
- crafty,
- cunning,
- cute,
- deceitful,
- deep,
- deep-laid,
- designing,
- diplomatic,
- doggo,
- feline,
- foxy,
- furtive,
- guileful,
- hidden out,
- hidlings,
- hole-and-corner,
- hugger-mugger,
- hush-hush,
- in ambush,
- in hiding,
- in the wings,
- ingenious,
- insidious,
- inventive,
- knowing,
- lurking,
- noiseless,
- on tiptoe,
- pawky,
- politic,
- privy,
- prowling,
- pussyfoot,
- pussyfooted,
- quiet,
- ready,
- resourceful,
- scheming,
- secret,
- secretive,
- serpentine,
- sharp,
- shifty,
- shrewd,
- silent,
- skulking,
- slick,
- slinking,
- slinky,
- slippery,
- sly,
- smooth,
- snaky,
- sneak,
- sneaking,
- sneaky,
- sophistical,
- stealing,
- stealthful,
- strategic,
- subtile,
- subtle,
- supple,
- surreptitious,
- tactical,
- trickish,
- tricksy,
- tricky,
- under cover,
- under-the-counter,
- under-the-table,
- undercover,
- underground,
- underhand,
- underhanded,
- unobtrusive,
- vulpine,
- waiting concealed,
- wary,
- wily