dilute

Adjective

• reduced in strength or concentration or quality or purity
  • diluted alcohol
    
  • a dilute solution
    
  • dilute acetic acid
    

Verb

• corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones
  • adulterate liquor
    

• lessen the strength or flavor of a solution or mixture
  • cut bourbon
    

Related words

• Synonyms: 
  diluted , load , adulterate , stretch , debase , thin , thin out , reduce , cut