sneak - noun

a person who is regarded as underhanded and furtive and contemptible

someone who prowls or sneaks about; usually with unlawful intentions

someone acting as an informer or decoy for the police

sneak - verb

• to go stealthily or furtively
• put, bring, or take in a secretive or furtive manner
• make off with belongings of others
• pass on stealthily

sneak - adjective

• marked by quiet and caution and secrecy; taking pains to avoid being observed

sneak - thesaurus

abstract   cabbage   canary   creep   filch   fink   furtive   hook   lift   mouse   nobble   pilfer   pinch   prowler   purloin   pussyfoot   slip   snarf   sneaker   sneaky   snitch   snitcher   stalker   stealthy   stoolie   stoolpigeon   surreptitious   swipe