| 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). |

a·brupt (ə-brŭpt') adj.
[Latin abruptus, past participle of abrumpere, to break off : ab-, away; see ab-1 + rumpere, to break; see reup- in Indo-European roots.] a·brupt'ly adv., a·brupt'ness n. |