Vindicate : clear (someone) of blame or suspicion.Exonerate : (of an official body) absolve (someone) from blame for a fault or wrongdoing.Condemn : sentence (someone) to a particular punishment, especially death.Defend : resist an attack made on (someone or something); protect from harm or danger.Excuse : seek to lessen the blame attaching to (a fault or offence); try to justify.Antonym of Vindicate is Condemn