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1.
Hating faith or religion. Back formation from homophobic, used by anti-religious people to describe those who oppose homosexuality or the objectives of those who advocate for homosexual rights. Faithphobes are people who criticize or attack people of faith (religious people) for not accepting homosexuality or homosexual rights specifically but can be extended to anyone who is against faith.
His speech was very faithphobic, attacking conservative Christians for their failure to accept gay marriage.
by mike1939 April 10, 2013
 
2.
Older form of faithphobic, meaning hating religion.
They were faith-phobic in their revulsion at the piety of religious believers.
by mike1939 April 25, 2013