following the teachings or manifesting the qualities or spirit of Jesus Christ
source: WordNet 3.0
Pertaining to Christ or his religion; as, Christian people.
source: Webster 1913
noun
a religious person who believes Jesus is the Christ and who is a member of a Christian denomination
source: WordNet 3.0
One who believes, or professes or is assumed to believe, in Jesus Christ, and the truth as taught by Him; especially, one whose inward and outward life is conformed to the doctrines of Christ.