convulsions

Noun

• a sudden uncontrollable attack
  • "convulsions of laughter"
• violent uncontrollable contractions of muscles
• a violent disturbance
  • "the convulsions of the stock market"
• a physical disturbance such as an earthquake or upheaval
• plural of convulsion

Synonyms

convulsion, fit, paroxysm, turmoil, upheaval