Origin: 1350–1400; ME < L
cīvīlis, equiv. to
cīv(
is) citizen +
-īlis -il 
Related forms: civ⋅il⋅ness, noun
Synonyms:
7, 8. respectful, deferential, gracious, complaisant, suave, affable, urbane, courtly. Civil, affable, courteous, polite all imply avoidance of rudeness toward others. Civil suggests a minimum of observance of social requirements. Affable suggests ease of approach and friendliness. Courteous implies positive, dignified, sincere, and thoughtful consideration for others. Polite implies habitual courtesy, arising from a consciousness of one's training and the demands of good manners.
Antonyms:
7, 8. boorish, churlish.