spiritualist n. + Add to list US //ˈspɪɹɪˌtʃuəˌɫɪst// UK //spˈɪɹɪtʃˌuːəlˌɪst// spir·i·tu·al·ist Archaic SynonymsEtymology Synonyms mediumsensitivespiritualisticOrigin From spiritual + -ist.