paranoid

adjective

para·​noid ˈper-ə-ˌnȯid 

ˌpa-rə-

variants or less commonly paranoidal

ˌper-ə-ˈnȯi-dᵊl 

ˌpa-rə-

1

: characterized by or resembling paranoia or paranoid schizophrenia

a paranoid psychiatric patient

2

: characterized by suspiciousness, persecutory trends, or megalomania

behaving in a paranoid manner with accusations of persecutions

3

: extremely fearful

was so paranoid that he was afraid to walk the streets

paranoid noun

Examples of paranoid in a Sentence

I guess I was just being paranoid.

She's a little paranoid about her job.

It's nothing more than a paranoid fantasy.

Recent Examples on the Web

By the way, the last scene of The Conversation has the paranoid Gene Hackman destroying his apartment in a desperate and futile search for listening devices. —Rose Horowitch, The Atlantic, 30 Jan. 2026

Natalie is paranoid about having taken food from Stephen. —Tom Smyth, Vulture, 30 Jan. 2026

The paranoia that now governs American life echoes the paranoid logic of the domestic thriller. —Judy Berman, Time, 30 Jan. 2026

Is Laura being paranoid, or is Cherry actually set on destroying Laura’s life? —Declan Gallagher, Entertainment Weekly, 30 Jan. 2026

Word History

First Known Use

1901, in the meaning defined at sense 1

Phrases Containing paranoid

• paranoid schizophrenia

Rhymes for paranoid

• adenoid
• alkaloid
• amoeboid
• amyloid
• aneroid
• anthropoid
• arachnoid
• asteroid
• benzenoid
• carcinoid
• celluloid
• coronoid

Kids Definition

paranoid

1 of 2 adjective

para·​noid

ˈpar-ə-ˌnȯid

1

: resembling paranoia

2

: marked especially by suspiciousness, distrust, and feelings of persecution

3

: extremely fearful

grew paranoid about losing her job

paranoid

2 of 2 noun

: one who is paranoid

Medical Definition

paranoid

1 of 2 adjective

para·​noid ˈpar-ə-ˌnȯid 

variants also paranoidal

ˌpar-ə-ˈnȯid-ᵊl 

1

: characterized by or resembling paranoia or paranoid schizophrenia

2

: characterized by suspiciousness, persecutory trends, or megalomania

paranoid

2 of 2 noun

: one affected with paranoia or paranoid schizophrenia

called also paranoiac