IranianPronunciation: /ɪˈreɪnɪən, ɪˈrɑː-/Translate Iranian | into Italian | into Spanish Definition of Iranian adjective relating to Iran or its people. relating to or denoting the group of Indo-European languages that includes Persian (Farsi), Pashto, Avestan, and Kurdish. noun a native or inhabitant of Iran, or a person of Iranian descent. Iranian in other Oxford dictionaries Definition of Iranian in the US English dictionary