extemporal

ex·tem·po·ral

E0294300 (ĭk-stĕm′pər-əl)adj. Archaic Extemporaneous.
[Latin extemporālis, from ex tempore; see extempore.]

extemporal

(ɛksˈtɛmpərəl) adjarchaic done or said without premeditation, impromptu

ex•tem•po•ral

(ɪkˈstɛm pər əl)

adj. Archaic. extemporaneous. [1560–70; < Latin extemporālis. See extempore, -al1] ex•tem′po•ral•ly, adv.