not religious; not practicing a religion and feeling no religious impulses or emotions.

showing or characterized by a lack of religion.

showing indifference or hostility to religion

irreligious statements.

adjective

agnostic , atheistic , blasphemous , faithless , free-thinking , godless , heathen , iconoclastic , impious , irreverent , pagan , sacrilegious , sinful , unbelieving , undevout , unholy