paranoid

adjective

1. of, like, or suffering from paranoia.

noun

2. a person suffering from paranoia.

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. adj.

1. Relating to, characteristic of, or affected with paranoia.

n.

1. One affected with paranoia.