This is the 5972nd most frequent Portuguese word.
brusque
Abrupt or blunt in manner or speech.
In this sentence, 'brusque' is used to describe the manner of the movement as being sudden and unexpected.
O movimento do atleta foi brusque, o que surpreendeu a torcida.
The athlete's movement was brusque, which surprised the audience.
Here, 'brusque' illustrates the abrupt and quick nature of the weather change.
A mudança no clima foi brusque, de ensolarado para chuva forte em minutos.
The change in weather was brusque, from sunny to heavy rain within minutes.
In this case, 'brusque' conveys the sharp or rough tone in the way the response was given.