Antonym: religious. Similar words: speculate, speculation, particular, spectacular, in particular, particularly, security, molecule. Meaning: ['sekjələr /'sekjʊlə] 
n. someone who is not a clergyman or a professional person. adj. concerning those not members of the clergy.
n. someone who is not a clergyman or a professional person. adj. concerning those not members of the clergy. 
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151) The tidal solutions obtained from SLR and satellite altimetry are used to compute the secular changes in the Moon's orbit elements and the Earth rotation rate in the ecliptic reference system.
152) Secular, it opposed deification of any kind, including of a leader like Mao Zedong.
153) It can take a secular form, take a Christian form, Judaic form, Hindu Form, with Gandhi and so forth.
154) Of course, some passages are obscure or anachronistic. But many of the sayings attributed to Confucius breathe a remarkably fresh secular humanism.
More similar words: speculate, speculation, particular, spectacular, in particular, particularly, security, molecule, prosecutor, consecutive, prosecution, regular, calculate, articulate, regularly, calculation, popularity, triangular, at regular intervals, sec., execute, sector, second, insect, executive, execution, section, in secret, secretary, secondary.