Entry 2 senses Webster, 1913 Irreligious · Ir·re·li·gious · IPA /ˌɪɹɪˈlɪd͡ʒəs/ 01 a. Destitute of religion; not controlled by religious motives or principles; ungodly. Cf. Impious. 1. Destitute of religion; not controlled by religious motives or principles; ungodly. Cf. Impious. See: Impious “Shame and reproach are generally the portion of the impious and irreligious.” — South. 2. Indicating a lack of religion; profane; wicked; as, irreligious speech.