Found 2 items, similar to extemporarily.
English → English (WordNet) Definition: extemporarily extemporarily adv : without prior preparation; “he spoke extemporaneously” [syn: extemporaneously, extempore]
English → English (gcide) Definition: Extemporarily Extemporarily \Ex*tem"po*ra*ri*ly\, adv. Extemporaneously. [1913 Webster]