Quick and rude in manner or speech. (Cambridge Dictionary)
Markedly short and abrupt. (Merriam – Webster)
If you describe a person or their behaviour as brusque, you mean that they deal with things, or say things, quickly and shortly, so that they seem to be rude. (Collins Dictionary)
Abrupt, sudden. (Collins Dictionary)
Abrupt or offhand in speech or manner. (Oxford Dictionaries)
Thesaurus.plus. Brusk and Brusque.