polite (having good manners and respect for other people): He was very polite to us. [opposite: impolite, rude]
civil (polite in a formal way but not friendly): Jane was civil to everybody.
respectful (having or showing respect): She was very respectful towards my relatives.
courteous formal (very polite and respectful): The hotel staff were always courteous and helpful.
gracious formal (courteous, kind and pleasant, especially to people of a lower rank): She is a very gracious woman.
deferential (polite and respectful): Mike is always deferential to his superiors.
