WordRel.com

• one who is playfully mischievous

  synonym	impmonkeyrapscallionrascalscalawagscamp
  exemplifies	British English
  exemplifies	depreciationderogationdisparagement
  hypernym	childfrykidminornestlingnippershaversmall frytiddlertiketykeyoungster
  hyponym	bratholy terrorlittle terrorterror

• a deceitful and unreliable scoundrel

  synonym	knaverapscallionrascalroguescalawagvarlet
  exemplifies	depreciationderogationdisparagement
  hypernym	scoundrelvillain

• a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)

  synonym	scalawag
  exemplifies	depreciationderogationdisparagement
  hypernym	bad person