беззвучный angolul

silent▼(in silent mode, on silent, with the sound turned off)
adjective
[UK: ˈsaɪ.lənt] [US: ˈsaɪ.lənt]

soundless▼(without sound)
adjective
[UK: ˈsaʊnd.ləs] [US: ˈsaʊnd.ləs]

voiceless▼(lacking a voice, without vocal sound)
adjective
[UK: ˈvɔɪ.sləs] [US: ˌvɔɪ.sləs]