Undeceived
Part of speech: verb
Definition: To free from misconception, deception or error.
Disenchanted
Part of speech: verb
Definition: (of a person) To free from illusion, false belief or enchantment; to undeceive or disillusion.
Example sentence: The phenomenon of home schooling is a wonderful example of the American can-do attitude. Growing numbers of parents have become disenchanted with government-run public schools. Many parents have simply taken matters into their own hands, literally.