disillusioned

Disillusioned is an adjective describing a state of disappointment and loss of belief or trust in something previously thought to be true or good.

Etymology: derived from the prefix dis- meaning reverse, and from illusion, the perception of something as real that is in fact deceptive. The term implies an awakening that undermines earlier idealization.

Common contexts include politics and social movements after exposure to corruption or failure, personal relationships when expectations are unmet, or careers when ideals clash with practical constraints. Literature and journalism frequently explore disillusionment as a theme.

In psychology, disillusionment is not a clinical diagnosis but a normal emotional response to information that contradicts cherished beliefs. It can spur critical thinking and re-evaluation, yet it can also foster cynicism or withdrawal.

Related terms include disenchantment and disillusionment as a noun. The concept is used across disciplines to describe shifts in outlook from idealism toward realism.