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1.
A Christian (i.e., follower of Jesus Christ who accepts the guy as Savior), but is not affiliate with any particular denomination or group; sometimes it may also refer to a Christian group that claims to be non-denominational, or a member of such a group.
I accept Jesus as Savior, but am not Catholic, Protestant, Orthodox etc., nor anything else. I'm a non-denominational Christian.
by librapi October 29, 2009
 
2.
a christian person who is wimpy and can't choose a real religion. A person who is netutral on religious beliefs.
being a non-denominational christian i believe that other religions are wrong but mine.
by Elizabeth Davis December 15, 2007