paranoea

Noun

paranoia (countable and uncountable, plural paranoias or (archaic) paranoiæ)

1. (obsolete) 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.

   Synonyms:

   paranoidism

   Antonyms:

   pronoia

2. Extreme, irrational distrust of others.