adjective

polite, respectful, or considerate in manner.

she was courteous and obliging to all

polite,well mannered,civil,respectful,deferential,well behaved,well bred,gentlemanly,chivalrous,gallant,ladylike,genteel,cultivated,gracious,obliging,kind,considerate,pleasant,cordial,genial,affable,thoughtful,urbane,well brought up,well spoken,formal,proper,polished,refined,decorous,courtly,civilized,tactful,discreet,diplomatic,decent,mannerly