Feeling intense, unreasonable fear or distrust that others are plotting against you or will harm you.
From Greek 'para' (beside, beyond) and 'noos' (mind), literally meaning 'beyond the mind.' The term was popularized in psychiatric terminology in the late 19th century to describe a mental condition characterized by delusions of persecution or grandeur.
The word 'paranoid' reveals something fascinating about how our brains work: we're actually evolved to be slightly paranoid because a false alarm about danger saved lives, but a missed real threat could be fatal! This is called 'Type I vs. Type II errors,' and it's why humans naturally lean toward suspicion.
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