despairing UK /dɪˈspɛə.ɹɪŋ/US /dɪˈspɛɹ.ɪŋ/adjective 1noun 1forms 1 adjective1 •Feeling, expressing, or caused by despair; hopeless.He was beginning to forget his burdening, despairing mood of a short while ago. — 1964 noun1 •A mood or display of despair. formsdespairings