1. (

• corrupt ,
• pervert ,
• subvert ,
• demoralize ,
• demoralise ,
• debauch ,
• debase ,
• profane ,
• vitiate ,
• deprave ,
• misdirect

) corrupt morally or by intemperance or sensuality; "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children?"; "corrupt the morals" ;

2. (

• mar ,
• impair ,
• spoil ,
• deflower ,
• vitiate ,

) make imperfect; "nothing marred her beauty" ;

3. (

• invalidate ,
• void ,
• vitiate

) take away the legal force of or render ineffective; "invalidate a contract" ;