[kosciusko51]

Look at definition 3. Frankly, I don’t consider anti-trinitarians as Christians, despite any loose definition that might confer that title to them.

[Cronos]

Definition #3 "designating Christians, especially of the late 1970s, eschewing the designation of fundamentalist but holding to a conservative interpretation of the Bible. "

Well it does say "of the 1970s", but if they hold to a conservative interpretation of the Bible then they should hold on to the conservative interpretation from the 9th century, right? :) Orthodoxy is ultra-conservative!

There is no real definition of evangelical except "Bible only" and "grace only" - and no definining authority. Since the Pentecostals say that the Bible doesn't use the word Trinity, then they are "bible only" and they are also "grace only". So you can't offhand reject them from the evangelical definition