Wikipedia:

Anti-Christian sentiment | Christophobia | Christianophobia

Summary:

found in opposition to some or all Christians, the Christian religion, or the practice of Christianity. Christophobia or Christianophobia are also according to Council of European Episcopal Conferences names for "every form of discrimination and ...  (35 of 3611 words)

Link:

http://en.wikipedia.org/wiki/Anti-Christian sentiment  [cite]

Wiktionary:

unchristianly | more unchristianly [comparative] | most unchristianly [superlative]

Summary:

In an unchristian way.  (4 of 9 words, 1 etymology)

Link:

http://en.wiktionary.org/wiki/unchristianly  [cite]

Random House:

unchristian

Summary:

not conforming to Christian teaching or principles. | not Christian. | [informal] unsuitable for Christians; uncivilized; objectionable.  (15 of 40 words, 3 senses, pronunciation)

Link:

http://dictionary.infoplease.com/unchristian  [cite]

Merriam-Webster:

unchristian

Summary:

not of the Christian faith | contrary to the Christian spirit or character | "uncivilized", "barbarous"  (14 of 30 words, 3 senses, pronunciation)

Link:

http://www.merriam-webster.com/dictionary/unchristian  [cite]

Encarta:

unchristian

Summary:

unkind or selfish, and therefore against Christian principles and teachings | not belonging to the Christian Church  (16 of 28 words, 2 senses, pronunciation)

Link:

http://encarta.msn.com/dictionary 1861707616/definition.html  [cite]