Ab‐rupt″ (�), a. [L. abruptus, p. p. of abrumpere to break off; ab + rumpere to break. See Rupture.] 1. Broken off; very steep, or craggy, as rocks, precipices, banks; precipitous; steep; as, abrupt places. “Tumbling through ricks abrupt,” Thomson.
2. Without notice to prepare the mind for the event; sudden; hasty; unceremonious. “The cause of your abrupt departure.” Shak.
3. Having sudden transitions from one subject to another; unconnected.
The abrupt style, which hath many breaches.
B. Jonson.
4. (Bot.) Suddenly terminating, as if cut off. Gray.
Syn. — Sudden; unexpected; hasty; rough; curt; unceremonious; rugged; blunt; disconnected; broken.