suddenness

noun

1. (uncountable, usually)The state of being sudden.

   “The suddenness with which the solemn quiet had been broken in upon, had chaced from his remembrance the horrid phantom;—it now recurred to it, with two-fold force, and a shudder crept all over him.”

   “The suddenness of this shock must prove irresistable; the Count and those about him will be borne down; the rest will take to flight; the friends of Bernabò will rise and liberate his sons, while I seize one of the gates and secure a retreat […]”

   “"Well," said the Duc, with that outward calmness of manner which anger often affects; "so you do not like me? I am sorry for your bad taste! and I bid you good night, quite convinced that you will repent your refusal; and I dare say you will never get married at all." So saying, he left the terrace; while Francesca remained for a few minutes, bewildered by the suddenness of the scene, and half inclined to laugh at the Duc's parting denunciation.”