soundlessly
🇺🇸
/ˈsaʊndləsli/
🇬🇧
/ˈsaʊndləsli/
adverb
R
in a way that no sound is made
The cat moved soundlessly through the room, surprising everyone.
猫は部屋を音もなく動いて、皆を驚かせた。
translation
音もなくに