Autoschediastic

{ Au′to‐sche′di‐as″tic (a̤′tō̍‐skē′dĭ‐ăs″tĭk), Au′to‐sche′di‐as″tic‐al (–ăs″tĭ‐kal), } a. [Auto- + Gr. σχεδιάζειν to do hastily. See Schediasm.] Extemporary; offhand. Dean Martin.