Disenchantment (noun)

The act or an instance of freeing from illusion or enchantment; the state of being disillusioned or disenchanted.

Origin:

From the old french desencantement, from the verb desencantar, meaning "to disenchant".

Examples:

1. The disenchantment he felt after learning the truth about his hero was devastating.
2. The disenchantment with the political system led many voters to lose faith in democracy.
3. The disenchantment with materialism was a common theme in the artist's work.
4. The disenchantment of the once-loyal customers was a major challenge for the company.
5. The disenchantment with life in the city led many people to seek a more fulfilling existence in the countryside.