sneaky

As adjectives the difference between criminal and sneaky

is that criminal is being against the law; forbidden by law while sneaky is difficult to catch due to constantly outwitting the adversaries.

As a noun criminal

is a person who is guilty of a crime, notably breaking the law.

As adjectives the difference between coy and sneaky

is that coy is (dated) bashful, shy, retiring while sneaky is difficult to catch due to constantly outwitting the adversaries.

As a verb coy

is (obsolete) to caress, pet; to coax, entice.

As a noun coy

is a trap from which waterfowl may be hunted.

As adjectives the difference between sneaky and underhanded

is that sneaky is difficult to catch due to constantly outwitting the adversaries while underhanded is done by moving the hand (and arm) from below.

Corrupt is a related term of sneaky.

As adjectives the difference between corrupt and sneaky

is that corrupt is in a depraved state; debased; perverted; morally degenerate; weak in morals while sneaky is difficult to catch due to constantly outwitting the adversaries.

As a verb corrupt

is to make ; to change from good to bad; to draw away from the right path; to deprave; to pervert.

As adjectives the difference between sneaky and secretive

is that sneaky is difficult to catch due to constantly outwitting the adversaries while secretive is having an inclination to secrecy.

As adjectives the difference between fraudulent and sneaky

is that fraudulent is dishonest; based on fraud or deception while sneaky is difficult to catch due to constantly outwitting the adversaries.

Sneaky is a related term of shameful.

As adjectives the difference between sneaky and shameful

is that sneaky is difficult to catch due to constantly outwitting the adversaries while shameful is causing or meriting shame or disgrace; disgraceful.

Dastardly is a synonym of sneaky.

As adjectives the difference between dastardly and sneaky

is that dastardly is in the manner of a dastard; marked by cowardice; pusillanimous while sneaky is difficult to catch due to constantly outwitting the adversaries.

As adjectives the difference between sneaky and cunning

is that sneaky is difficult to catch due to constantly outwitting the adversaries while cunning is sly; crafty; clever in surreptitious behaviour.

As a noun cunning is

knowledge; learning; special knowledge (sometimes implying occult or magical knowledge).

As a noun skulk

is a group of foxes.

As a verb skulk

is to conceal oneself; to hide.

As an adjective sneaky is

difficult to catch due to constantly outwitting the adversaries.