forlorn(unlikely to succeed) adjective [UK: fə.ˈlɔːn] [US: fər.ˈlɔːrn]
hopeless(destitute of hope; having no expectation of good; despairing) adjective [UK: ˈhəʊ.plɪs] [US: ˈhoʊ.plɪs]The situation is hopeless. = La situación es desesperada.
last-ditch(as a last resort, done in desperation) adjective [UK: lɑːst dɪtʃ] [US: ˈlæst ˈdɪtʃ]
desesperadonoun {m}
desperate(filled with despair) noun [UK: ˈde.spə.rət] [US: ˈde.sprət]He was desperate to escape. = Estaba desesperado por escapar.