Wiktionary
screechingly
adv. In a screeching way; with screeching noises.
Usage examples of "screechingly".
A torchbearer unlocked it with an iron key and pulled it screechingly open.
The cable car laboriously approached, then screechingly came to a stop.
I'd heard it many times, and with steadily increasing horror, since boarding the Morning Rose, a screechingly cacophonous racket that was fit for heralding nothing short of Armageddon.