(~s)
If one person refers to another as an ~, the first person is hostile towards the second person because that person has a different religion or has no religion. (LITERARY)
...a holy war, to drive the ~s and the non-believers out of this holy land.
N-COUNT disapproval
•
Infidel is also an adjective.
He promised to continue the fight against ~ forces.
ADJ: ADJ n