fallacious

Adjective

• based on an incorrect or misleading notion or information
  • fallacious hope
    

• intended to deceive
  • deceitful advertising
    
  • fallacious testimony
    
  • smooth, shining, and deceitful as thin ice - S.T.Coleridge
    
  • a fraudulent scheme to escape paying taxes
    

• containing or based on a fallacy
  • fallacious reasoning
    
  • an unsound argument
    

Related words

• Synonyms: 
  deceitful , fraudulent , unsound