parasitical

Adjective

• of plants or persons; having the nature or habits of a parasite or leech; living off another
  • a wealthy class parasitic upon the labor of the masses
    
  • parasitic vines that strangle the trees
    
  • bloodsucking blackmailer
    
  • his indolent leechlike existence
    

• relating to or caused by parasites
  • parasitic infection
    

Related words

• Synonyms: 
  parasitic , leechlike , bloodsucking