Adjectives

(s)brusque, brusk, curt, shortmarked by rude or peremptory shortness“try to cultivate a less brusque manner”, “a curt reply”, “the salesgirl was very short with him”
(s)crisp, curt, laconic, tersebrief and to the point; effectively cut short“a crisp retort”, “a response so curt as to be almost rude”, “the laconic reply: ‘yes’”, “short and terse and easy to understand”