irreligious
adjective/ˌɪrɪˈlɪdʒəs/
/ˌɪrɪˈlɪdʒəs/
(formal)- without any religious belief; showing no respect for religionWord Originlate Middle English: from Latin irreligiosus, from in- ‘not’ + religiosus (from religio ‘reverence, obligation’, perhaps based on Latin religare ‘to bind’).
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irreligious