disillusion
noun
dis·il·lu·sion
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Definition of disillusion
(Entry 1 of 2)
: the condition of being disenchanted : the condition of being dissatisfied or defeated in expectation or hope
suffered romantic disillusions
disillusion
verb
disillusioned;
disillusioning\ ˌdis-ə-ˈlü-zhə-niŋ
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Definition of disillusion (Entry 2 of 2)
: to free from illusion
also
: to cause to lose naive faith and trust
The job disillusioned her about working in retail.