Definition of theist in US English:

theist

noun

  • A person who believes in the existence of a god or gods, specifically of a creator who intervenes in the universe.

    ‘I am a hardcore theist and the person most close to me is my God’

adjective

  • Denoting or relating to belief in the existence of a god or gods, specifically of a creator who intervenes in the universe.

    ‘most atheists were were raised in a theist tradition’

Origin

Mid 17th century: from Greek theos ‘god’ + -ist.

Pronunciation

theist

/ˈTHēist//ˈθiɪst/