Paranoid

[par-uh-noid] /ˈpær əˌnɔɪd/

adjective
1.
of, like, or suffering from paranoia.
noun
2.
a person suffering from paranoia.
/ˈpærəˌnɔɪd/
adjective
1.
of, characterized by, or resembling paranoia
2.
(informal) exhibiting undue suspicion, fear of persecution, etc
noun
3.
a person who shows the behaviour patterns associated with paranoia
adj.

1901, irregularly formed from paranoia + -oid. As a noun, “a paranoid person,” attested from 1922.

paranoid par·a·noid (pār’ə-noid’)
adj.
Relating to, characteristic of, or affected with paranoia. n.
One affected with paranoia.

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