Synonyms of convulsion

1 Syllable
spasms, pains, pain, cramp, crick, spasm, throe, fit
2 Syllables
quivers, paining, outcries, tumult, cramping, quaked, frenzies, tempest, frenzy, quakers, clamors, outbreak, quaker, tremblers, seismism, shaking, tremor, clamor, outcry, quiver, attack, trembler
3 Syllables
aftershock, commotions, commotion, algospasm, paroxysms, clamored, upheavals, cataclysm, contraction, kerfuffle, rampancy, microseism, macroseism, paroxysm, seizure, clamoring, contortion, earthquake, drumfire, upheaval, soreness
4 Syllables
constipation, epilepsy, disturbance, ebullition, seimicity, rollercoaster, unsettlement
5 Syllables
topsy-turviness, vociferation