writhing

verb
  1. 1

    To twist, to wring (something).

  2. 2

    To contort (a part of the body).

  3. 3

    To twist or contort the body; to be distorted.

  4. 4

    To extort.

noun
  1. 1

    A twisting struggle.

adjective
  1. 1

    Bended in twisting struggle.

Source: https://en.wiktionary.org/wiki/writhe, https://en.wiktionary.org/wiki/writhing