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US /ˈɪnfədəl/ UK /ˈɪnfɪdəl/
Freq #22653

Meanings

  1. 1
  2. 2

Thesaurus

Synonyms
1 noun · historical and often... unbelievernonbeliever
2 adj · archaic: not accepting a... unbelievingirreligious
Opposites
Word family
Forms infidels
Related forms fidelityinfidelityfaith

Simplified etymology

Infidel comes from Latin infidelis, meaning “not faithful,” based on fides, “faith.” It originally denoted someone belonging to a religion other than one’s own; the same Latin word also lies behind infidelity.

Etymology

From Middle French infidele, from Latin infidelis ('unfaithful'), formed from in- ('not') + fidelis ('faithful'), the source of fidelity. English narrowed the word from general unfaithfulness to religious unbelief. Because it has often been used contemptuously for outsiders, modern use can be offensive.

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