adj. 25B6; adjective
a civil marriage : SECULAR, non-religious, lay; formal laic.
civil aviation : NON-MILITARY, civilian.
a civil war : INTERNAL, domestic, interior, national.
he behaved in a civil manner : POLITE, courteous, well mannered, well bred, gentlemanly, chivalrous, gallant, ladylike; cordial, genial, pleasant, affable.
religious, military, international, rude.