cheating

Adjective

• violating accepted standards or rules
  • a dirty fighter
    
  • used foul means to gain power
    
  • a nasty unsporting serve
    
  • fined for unsportsmanlike behavior
    

• not faithful to a spouse or lover
  • adulterous husbands and wives
    
  • a two-timing boyfriend
    

Noun

• a deception for profit to yourself

Related words

• Synonyms: 
  cheating(a) , dirty , foul , unsporting , unsportsmanlike , adulterous , two-timing(a) , cheat