abruptness

adjective

1. sudden or unexpected: an abrupt departure.
2. curt or brusque in speech, manner, etc.: an abrupt reply.
3. terminating or changing suddenly: an abrupt turn in a road.
4. having many sudden changes from one subject to another; lacking in continuity or smoothness: an abrupt writing style.
5. steep; precipitous: an abrupt descent.
6. Botany. truncate(def 4).

adjective

1. sudden; unexpected
2. brusque or brief in speech, manner, etc; curt
3. (of a style of writing or speaking) making sharp transitions from one subject to another; disconnected
4. precipitous; steep
5. botany shaped as though a part has been cut off; truncate
6. geology (of strata) cropping out suddenly

adj.

1580s, from Latin abruptus “broken off, precipitous, disconnected,” past participle of abrumpere “break off,” from ab- “off” (see ab-) + rumpere “break” (see rupture (n.)). Related: Abruptly; abruptness.