YSTRADGYNLAIS Meaning of YSTRADGYNLAIS in English Ystradgynlais BrE AmE ˌʌs trəd ˈɡʌn laɪs -træd- —Welsh [ ˌəs drad ˈɡən lais ] Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012