terse - abrupt
If you are ‘terse’ then you use few words, typically in a way that is rude or unfriendly. Such a response is usually given when annoyed or irritated, and can often be the catalyst for a falling out or argument.
The politician issued a terse statement denying all the allegations and threatening legal action against those who reported the story.
I offered Gary some help, but he tersely told me to leave him alone. That’s the last time I try to do him a favour!
I asked Jane why she was late and was surprised by the terseness of her response. I didn’t expect her to be so rude about it.