forlornly(in a forlorn manner) adverb [UK: fə.ˈlɔːn.li] [US: fə.ˈlɔːrn.li]
regrettably(in a manner inspiring or deserving regret) adverb [UK: rɪ.ˈɡre.tə.bli] [US: rɪ.ˈɡre.tə.bli]
unfortunately(happening through bad luck) adverb [UK: ʌn.ˈfɔː.tʃʊ.nət.li] [US: ʌn.ˈfɔːr.tʃə.nət.li]Unfortunately, my father isn't at home. = Desgraciadamente, mi padre no está en la casa.