Added 10 October 2026 theistic /θiˈɪstɪk/ adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about theistic at Wordnik → Where our words come from → Of or relating to theism. Origin From Ancient Greek. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: theologicaltheologicdeisticallotheisticreligionisticdeisticalhylotheisticzootheisticreligiotheologicaltritheisticaltheosophictheocratic Back to today's word