Look in the Dictionary Under "Unchristian"

And you might be surprised to find that it it actually is a word.

You might also find this:

Catholic school refuses admittance to an eight-year-old boy because his parents are lesbians.

A Roman Catholic school in Massachusetts has “withdrawn its acceptance of an 8-year-old boy with lesbian parents, saying their relationship was ‘in discord’ with church teachings.” “I’m accustomed to discrimination, I suppose, at my age and my experience as a gay woman,” one of the boy’s mothers said. “But I didn’t expect it against my child.”