paranoid

[ par-uh-noid ]
/ ˈpær əˌnɔɪd /

adjective

of, like, or suffering from paranoia.

noun

a person suffering from paranoia.
Also par·a·noi·ac [par-uh-noi-ak, -ik] /ˌpær əˈnɔɪ æk, -ɪk/, par·a·noe·ac [par-uh-nee-ak, -ik] /ˌpær əˈni æk, -ɪk/.

Origin of paranoid

1900–05; paranoi(a) + -oid, with base and suffix merged, perhaps by haplology from the expected *paranoioid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for paranoid

British Dictionary definitions for paranoid

paranoid

/ (ˈpærəˌnɔɪd) /

adjective

of, characterized by, or resembling paranoia
informal exhibiting undue suspicion, fear of persecution, etc

noun

a person who shows the behaviour patterns associated with paranoia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for paranoid

paranoid

[ părə-noid′ ]

adj.

Relating to, characteristic of, or affected with paranoia.

n.

One affected with paranoia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.