a person who is regarded as underhanded and furtive and contemptible

someone who prowls or sneaks about; usually with unlawful intentions

同义词：prowler  /  stalker

someone acting as an informer or decoy for the police

同义词：fink  /  snitch  /  snitcher  /  stoolpigeon  /  stool pigeon  /  stoolie  /  sneaker  /  canary

to go stealthily or furtively

同义词：mouse  /  creep  /  pussyfoot

put, bring, or take in a secretive or furtive manner

make off with belongings of others

同义词：pilfer  /  cabbage  /  purloin  /  pinch  /  abstract  /  snarf  /  swipe  /  hook  /  filch  /  nobble  /  lift

pass on stealthily

同义词：slip

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

同义词：furtive  /  sneaky  /  stealthy  /  surreptitious