convulsive

Adjective

• resembling a convulsion in being sudden and violent
  • a convulsive rage
    
  • convulsive laughter
    

• affected by involuntary jerky muscular contractions; resembling a spasm
  • convulsive motions
    
  • his body made a spasmodic jerk
    
  • spastic movements
    

Related words

• Synonyms: 
  spasmodic , spastic