This is the 14458th most frequent Polish word.
przeraźliwie
Extremely; terribly.
Here, 'przeraźliwie' is used as an adverb to intensify the quietness, adding a sense of eeriness and emotional discomfort to the description.
W nocy było przeraźliwie cicho.
At night, it was eerily silent.
In this sentence, 'przeraźliwie' functions as an adverb enhancing the difficulty of the exam, emphasizing the extreme level of effort required.
To był przeraźliwie trudny egzamin.
It was an extraordinarily difficult exam.
Here, 'przeraźliwie' is an adverb modifying the adjective 'blada' (pale), conveying a degree of paleness that provokes concern or alarm.