religious
1 churchgoing, devotional, devout, divine, doctrinal, faithful, god-fearing, godly, holy, pious, pure, reverent, righteous, sacred, scriptural, sectarian, spiritual, theological
2 conscientious, exact, faithful, fastidious, meticulous, punctilious, rigid, rigorous, scrupulous, unerring, unswerving
Antonyms
1 godless, infidel, irreligious, rational, secular, unbelieving