1. Worldly rather than spiritual.
2. Not specifically relating to religion or to a religious body: secular music.
3. Relating to or advocating secularism.
4. Not bound by monastic restrictions, especially not belonging to a religious order. Used of the clergy.
5. Occurring or observed once in an age or century.
6. Lasting from century to century.
Religious skepticism or indifference.
2. The view that religious considerations should be excluded from civil affairs or public education.