I was poorly received and the general tone of the person assisting me was rude and abrupt.

abrupt 是形容词，由前缀 ab-（表示"离开"）和词根 rupt（来自拉丁语 rumpere，意为"打破"）组成，字面意思是"突然断裂的"。引申为"突然的、唐突的"，形容言行举止缺乏礼貌或准备，显得仓促而不友好。