suddenly
— Adverb
– English
~ happening unexpectedly; "suddenly she felt a sharp pain in her side"
suddenly
— Adverb
– English
~ on impulse; without premeditation; "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly"
suddenly
— Adverb
– English
~ quickly and without warning; "he stopped suddenly"
suddenness
— Noun
– English
~ the quality of happening with headlong haste or without warning