vitiate

(v) 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
corrupt, debase, debauch, demoralise, demoralize, deprave, misdirect, pervert, profane, subvert,
(v) make imperfect
- nothing marred her beauty
mar, deflower, impair, spoil,
(v) take away the legal force of or render ineffective
- invalidate a contract
void, invalidate,

corrupt debase debauch demoralise demoralize deprave misdirect pervert profane subvert mar deflower impair spoil void invalidate

validate

vitiated