1 adverb in a disappointing wayit has been performing disappointinglyis ábhar díomá é an chaoi a bhfuil ag éirí leis2 adverb expressing disappointmentar an drochuair c m udisappointingly, she didn't turn upcúis díomá é nár nocht sí3 adverb to a disappointing degreethere's disappointingly little research into itúdar díomá a laghad taighde atá déanta air