Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun suddenness
1 sense of suddenness
Sense 1
abruptness, precipitateness, precipitousness, precipitance, precipitancy, suddenness -- (the quality of happening with headlong haste or without warning)
=> haste, hastiness, hurry, hurriedness, precipitation -- (overly eager speed (and possible carelessness); "he soon regretted his haste")