Antonyms of adj interfaith

1 sense of interfaith

Sense 1
interfaith -- (involving persons of different religious faiths; "an interfaith marriage"; "interfaith good will")

INDIRECT (VIA religious) -> irreligious -- (hostile or indifferent to religion)

Similarity of adj interfaith

1 sense of interfaith

Sense 1
interfaith -- (involving persons of different religious faiths; "an interfaith marriage"; "interfaith good will")
       => religious (vs. irreligious) -- (having or showing belief in and reverence for a deity; "a religious man"; "religious attitude")