Entry 1 sense Webster, 1913 Religiosity /(-l?j`?-?s"?-t?)/ · Re·lig·i·os·i·ty · IPA /ɹɪˌlɪd͡ʒɪˈɑsəti/ 01 n. The quality of being religious; religious feeling or sentiment; religiousness. 1. The quality of being religious; religious feeling or sentiment; religiousness.[R.]