precipitousness

Nouns

(n) the property possessed by a slope that is very steep steepness, abruptness,
(n) the quality of happening with headlong haste or without warning precipitance, precipitancy, precipitateness, suddenness, abruptness,

Synonyms

steepness abruptness precipitance precipitancy precipitateness suddenness

Antonyms

gentleness gradualness

Words of close approximity