flunk

Noun

• failure to reach a minimum required performance
  • his failing the course led to his disqualification
    
  • he got two flunks on his report
    

Verb

• fail to get a passing grade
  • She studied hard but failed nevertheless
    
  • Did I fail the test?
    

Related words

• Synonyms: 
  failing , fail , bomb , flush it
• Antonyms: 
  passing , pass , qualifying , make it