dirigible UK /ˈdɪɹɪd͡ʒəbəl/US /ˈdɪɹ.ə.d͡ʒə.bəl/adjective 1noun 1forms 3 adjective1 •steerable noun1 •A self-propelled airship that can be steered.On the opposite wall, the R101 tragedy is recalled by the airship's tattered ensign in a glass case, a plaque from the Royal Airship Works and a photograph of the dirigible at her moorings. — 1980 formsdirigibles · more dirigible · most dirigible