Synonymer till vitiate

verb

1. (corrupt morally or by intemperance or sensuality) corrupt; pervert; subvert; demoralize; demoralise; debauch; debase; profane; deprave; misdirect; vitiate
2. (make imperfect) mar; impair; spoil; deflower; vitiate
3. (take away the legal force of or render ineffective) invalidate; void; vitiate