Secular
adjective
characteristic of or devoted to the temporal world as opposed to the spiritual world
“worldly goods and advancement”
Similar: worldly, temporal
adjective
of or relating to the doctrine that rejects religion and religious considerations
adjective
characteristic of those who are not members of the clergy
“set his collar in laic rather than clerical position”
Similar: laic, lay
noun
someone who is not a clergyman or a professional person
Similar: layman, layperson