Uncivil; rude; wanting in courtesy or good manners; uncourteous.
Another word meaning discourteous is disrespectful or rude
" She was very discourteous towards her customers. "
" She was very discourteous towards her customers. "
Discourteous
rude
courteous
cowardly, discourteous
impolite, rude, discourteous
If you are discourteous and impolite you are rude.
Here you are! Mannerlessness Discourteous Unsocial Unsystematic Unmethodical
discourteous or rude.
Discourteous