abruptness
Noun
Meaning
The state of being abrupt or broken; craggedness; ruggedness; steepness.
Suddenness; unceremonious haste or vehemence; as, abruptness of style or manner.
Source: Webster's dictionarySynonyms
shortness
precipitance
brusqueness
curtness
precipitancy
suddenness
precipitateness
gruffness
precipitousness
steepness
speed
start
rise
precipitation
surprise
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Antonyms
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Examples
In addition to the Younger, Older, and Oldest dryases, a century-long period of colder climate similar to the Younger Dryas in abruptness has occurred within both the Bølling oscillation and the Allerød oscillation interstadials.
G. Kennedy, "Oratory", 519. Demosthenes was apt at combining abruptness with the extended period, brevity with breadth.