Definition of ontologism in English:

ontologism

noun

  • A mystical system based on the belief that God is directly and immediately apprehended by the mind as the first object of human intelligence.

Origin

Mid 19th century; earliest use found in The Southern Literary Messenger. From ontology + -ism, after Italian ontologismo. Compare French ontologisme, German Ontologismus.

Pronunciation

ontologism

/ɒnˈtɒlədʒɪz(ə)m/