paranoia
n//ˌpæɹ.əˈnɔɪ.ə//paranoia, skuggrädsla
The obsolete name for a psychotic disorder, now called delusional disorder, often (in one of six subtypes) characterized by delusions of persecution and a perceived threat against the individual affected with the disorder, and often associated with false accusations and a general mistrust of others
Extreme, irrational distrust of others.