adjectivecostasach adj1 c m udaor adj1 c m uthat car looks expensivetá cuma chostasach ar an gcarr sinthat was expensivebhí sé sin daorit's expensive to go theretá sé costasach dul annit was an expensive mistake for us allbotún an-chostasach a bhí ann dúinn ar fad, d'íocamar ar fad go daor as an mbotún sin