1 adverb informal very (much)thar a bheith c m uuafásach c m uthey were frightfully expensivebhí siad uafásach daor, bhí siad millteanach costasachthey're doing frightfully welltá ag éirí go hiontach leo2 adverb informal very badlygo huafásach c m ugo gránna c m ugo hainnis c m uthey were frightfully treatedcaitheadh go huafásach leothe children behave frightfullyní bhíonn múineadh madra ar na páistí