courteous

adjective
UK /ˈkɜːtiəs/
US /ˈkɝːtiəs/

Being polite and kind to other people.

The courteous boy held the door open for his teacher.


OTHER MEANINGS

2. Showing good manners in a formal or official setting.

The courteous clerk greeted every customer with a smile.

3. Acting in a way that shows care for other people's feelings.

She gave a courteous reply even though she disagreed.

4. Behaving politely toward guests or strangers.

Our courteous host made everyone feel welcome.