DISILLUSIONMENT
disenchantment, disillusion, disillusionment
(noun) freeing from false belief or illusions
Source: WordNet® 3.1
Etymology
Noun
disillusionment (countable and uncountable, plural disillusionments)
A feeling of disappointment, akin to depression, arising from the realization that something is not what it was expected or believed to be, possibly accompanied by philosophical angst from having one's beliefs challenged.
The act of freeing from an illusion; the state of being freed therefrom.
Source: Wiktionary
Dis`il*lu"sion*ment, n.
Definition: The act of freeing from an illusion, or the state of being
freed therefrom.
Source: Webster’s Unabridged Dictionary 1913 Edition