Definition of neo-Christian in US English:

neo-Christian

adjective

  • Holding modern or modified Christian views or attitudes.

noun

  • A new or modern Christian; specifically a convert to Christianity.

Origin

Mid 19th century; earliest use found in The New Monthly Magazine. From neo- + Christian.

Pronunciation

neo-Christian

/ˌniːə(ʊ)ˈkrɪstʃ(ə)n/