Added 10 October 2026 paranoid /ˈpæɹ.əˌnɔɪd/ noun Categories: PeopleUncommon Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about paranoid at Wordnik → Where our words come from → A person afflicted with paranoia. adjective Suffering from paranoia. Related Words: paranoiacinsaneschizophrenicschizophrenianeuroticmadfreakdelusionaleightsuspiciousdistrustfulmistrustful Back to today's word