civilly
Definitions
In a polite, courteous, or well-mannered way.
In a manner relating to the ordinary citizens of a country or their private affairs.
Examples
Despite their long-standing disagreement, the two neighbors managed to discuss the property line civilly.
The customer service representative handled the angry caller civilly, even when he began to raise his voice.
Synonyms
politely courteously respectfully graciously mannerly affably
Antonyms
rudely impolitely discourteously insolently brutally offensively