What is the meaning of vitiated?

verb

• Corrupt morally or by intemperance or sensuality.
  • usage: "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children"; "corrupt the morals"
  • synonyms: corrupt, pervert, subvert, demoralize, demoralise, debauch, debase, profane, vitiate, deprave, misdirect
• Make imperfect.
  • usage: "nothing marred her beauty"
  • synonyms: mar, impair, spoil, deflower, vitiate
• Take away the legal force of or render ineffective.
  • usage: "invalidate a contract"
  • synonyms: invalidate, void, vitiate

adjective

• Impaired by diminution.
  • synonyms: diminished, lessened, weakened
• Ruined in character or quality.
  • synonyms: corrupted, debased