| n. | 1. | The state of being abrupt or broken; craggedness; ruggedness; steepness. |
| 2. | Suddenness; unceremonious haste or vehemence; |
| Noun | 1. | abruptness - an abrupt discourteous manner |
| 2. | abruptness - the property possessed by a slope that is very steep Synonyms: precipitousness, steepness Antonyms: gentleness, gradualness - the property possessed by a slope that is very gradual | |
| 3. | abruptness - the quality of happening with headlong haste or without warning |