convulsively

estremecer convulsivamente

to shake uncontrollably for a moment, for example because you are frightened or disgusted

Tremer de forma violenta e descontrolada.

mover-se convulsivamente

to move with a sudden, sharp, uncontrolled motion

Mover-se com tremores violentos e incontroláveis.

contrair-se convulsivamente

to make a sudden, small, uncontrolled movement, especially of a part of your body

contrair-se de forma violenta e descontrolada

engolir convulsivamente

to make a swallowing motion with a series of muscle spasms, often due to distress or difficulty

Engolir de forma súbita, violenta e descontrolada, muitas vezes ao chorar ou com medo.