paranoia

[ par-uh-noi-uh ]
/ ˌpær əˈnɔɪ ə /

noun

Psychiatry. a mental disorder characterized by systematized delusions and the projection of personal conflicts, which are ascribed to the supposed hostility of others, sometimes progressing to disturbances of consciousness and aggressive acts believed to be performed in self-defense or as a mission.
baseless or excessive suspicion of the motives of others.
Also par·a·noe·a [par-uh-nee-uh] /ˌpær əˈni ə/.

Origin of paranoia

1805–15; < New Latin < Greek paránoia madness. See para-1, nous, -ia

British Dictionary definitions for paranoea

paranoia
/ (ˌpærəˈnɔɪə) /

noun

a form of schizophrenia characterized by a slowly progressive deterioration of the personality, involving delusions and often hallucinations
a mental disorder characterized by any of several types of delusions, in which the personality otherwise remains relatively intact
informal intense fear or suspicion, esp when unfounded

Derived forms of paranoia

paranoiac (ˌpærəˈnɔɪɪk) or paranoic (ˌpærəˈnəʊɪk), adjective, noun

Word Origin for paranoia

C19: via New Latin from Greek: frenzy, from paranoos distraught, from para- 1 + noos mind

Medical definitions for paranoea

paranoia
[ păr′ə-noiə ]

n.

A psychotic disorder characterized by systematized delusions, especially of persecution or grandeur, in the absence of other personality disorders.
Extreme, irrational distrust of others.

Cultural definitions for paranoea

paranoia
[ (par-uh-noy-uh) ]

A form of psychosis marked by delusions of persecution and of grandeur. One who suffers from paranoia is paranoid.

notes for paranoia

In popular terminology, a “paranoid” personality is characterized by suspicion and distrust of others; a tendency to look for hidden meaning behind other people's actions; argumentativeness; complaining; low tolerance for criticism; and a constant display of one's own talents, accomplishments, independence, and rationality.