unpronounceable

listen to the pronunciation of unpronounceable
Английский Язык - Турецкий язык
ağıza alınmaz
telaffuz edilemez
Английский Язык - Английский Язык
Extremely difficult to pronounce, especially of a foreign language
Impossible to pronounce or articulate
very difficult to pronounce correctly; "an unpronounceable foreign word"; "unutterable consonant clusters"
impossible or difficult to pronounce correctly
An unpronounceable word or name is too difficult to say. an unpronounceable word or name is very difficult to say
{s} cannot be pronounced