This is the 11317th most frequent Russian word.
дерганное
Jerky; twitchy; fidgety.
In this sentence, 'дерганное' describes a movement characterized by irregular or abrupt motions, emphasizing discomfort caused by such behavior.
Её движение было таким дерганным, что всем становилось неудобно.
Her movement was so jerky that everyone felt uncomfortable.
Here, 'дерганное' refers to the tone of speech which is unsteady and possibly indicative of anxiety or stress.
Он говорил с дерганным тоном, показывая своё нервное состояние.
He spoke with a jerky tone, reflecting his nervous state.
In this case, 'дерганное' illustrates the irregular functioning or operation of a machine, often seen as problematic or undesirable.