infidel

in·fi·del

noun \ˈin-fə-d^əl, -fə-ˌdel\

Definition of INFIDEL

1

: one who is not a Christian or who opposes Christianity

2

a : an unbeliever with respect to a particular religion b : one who acknowledges no religious belief

3

: a disbeliever in something specified or understood

— infidel adjective

Examples of INFIDEL

1. a holy war against the infidels

Origin of INFIDEL

Middle English infidele, from Middle French, from Late Latin infidelis unbelieving, from Latin, unfaithful, from in- + fidelis faithful — more at fidelity

First Known Use: 15th century

Other Christian Religious Terms

Pentateuch, blasphemy, curate, doxology, eremite, iconoclasm, liturgy, orison, pneuma, reliquary