WordWeb Online

1. Marked by ardent or zealous enthusiasm for a cause
   - evangelistic
    
2. Relating to or being a Christian church believing in personal conversion and the inerrancy of the Bible especially the 4 Gospels
   "evangelical Christianity"; "an ultraconservative evangelical message";
   - evangelic [rare]
    
3. Of, pertaining to, or in keeping with the Christian Gospel, especially as in the first 4 books of the New Testament
   - evangelic [rare]

1. Someone who is an evangelical Christian

Derived forms: evangelicals

See also: enthusiastic, keen

Encyclopedia: Evangelical