surreptitious vs sneaky

surreptitious and sneaky both are adjectives.

Word	Noun	Adjective	Verb	Adverb
surreptitious	No	Yes	No	No
sneaky	No	Yes	No	No

As adjectives, surreptitious and sneaky are synonyms defined as:

surreptitious and sneaky: marked by quiet and caution and secrecy; taking pains to avoid being observed

Other synonyms of surreptitious include furtive, sneak, stealthy.

surreptitious (adjective)	sneaky (adjective)
marked by quiet and caution and secrecy; taking pains to avoid being observed	marked by quiet and caution and secrecy; taking pains to avoid being observed
conducted with or marked by hidden aims or methods	marked by deception