noun
infidel
IHN-fuh-dl
noun
1
A person who does not believe in a particular religion, especially as viewed by believers of that religion.
"Medieval crusaders used "infidel" to describe anyone outside their own faith."
adj
1
Rejecting or lacking a particular religious faith.
"The term was often used as an insult toward infidel nations."
How to Use Infidel
Learner’s notesIn plain EnglishAn unbeliever, from the point of view of a particular religion.
When to use it
Historically used, often with hostility, by one religious group to label outsiders; it now reads as dated or loaded language.
Word Forms
more infidel comparative, infidels plural, most infidel superlative
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Etymology
From Latin infidelis, "unfaithful," from in- ("not") plus fidelis ("faithful") — related to fidelity.