good-for-naught

Adjective

• without merit
  • a sorry horse
    
  • a sorry excuse
    
  • a lazy no-count, good-for-nothing goldbrick
    
  • the car was a no-good piece of junk
    

Noun

• an idle worthless person

Related words

• Synonyms: 
  good-for-nothing , meritless , no-account , no-count , no-good , sorry , goldbrick , goof-off , ne'er-do-well