suddenly

Adverb

• on impulse; without premeditation
  • he decided to go to Chicago on the spur of the moment
    
  • he made up his mind suddenly
    

• quickly and without warning
  • he stopped suddenly
    

• happening unexpectedly
  • suddenly she felt a sharp pain in her side
    

Related words

• Synonyms: 
  on the spur of the moment , abruptly , short , dead , all of a sudden , of a sudden