- [adverb] happening unexpectedly; "suddenly she felt a sharp pain in her side"
Synonyms: all of a sudden, of a sudden
- [adverb] quickly and without warning; "he stopped suddenly"
Synonyms: abruptly, short, dead
- [adverb] on impulse; without premeditation; "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly"
Synonyms: on the spur of the moment
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