pantheist /ˈpænθiː.ɪst/adjective 1noun 1forms 3 adjective1 •Of or relating to pantheism.[S]ome pragmatists (such as William James) took a more pantheist or pandeist approach by rejecting views of God as separate from the world. — 2007 noun1 •A person who believes in pantheism. formspantheists · more pantheist · most pantheist