sec·u·lar 
(sĕkyə-lər)
(sĕkyə-lər)adj.
1.
a. Worldly rather than spiritual: the secular affairs of the parish.
b. Not relating to religion or to a religious body; nonreligious: secular music.
c. Not bound by the full monastic rule of a religious order. Used of clergy.
2. Relating to or advocating secularism.
3.
a. Occurring or observed once in an age or century, as games in ancient Rome.
b. Lasting or persisting for a long time: a secular bear market.
c. Astronomy Of or relating to characteristics of astronomical phenomena that change slowly over time.
n.
1. A member of the secular clergy.
2. A layperson.
[Middle English, from Old French seculer, from Late Latin saeculāris, from Latin, of an age, from saeculum, generation, age.]
secu·lar·ly adv.