extemporaneous
/ɪksˌ-/ adjective
- adjective With inadequate preparation or without advance thought; offhand.
Synonyms
off-the-cuff extemporal improvised extempore ad lib extemporary extemporized gash impromptu improviso offhand spur-of-the-moment ad-lib offhanded unrehearsed
Etymology
From Late Latin extemporāneus, from Latin ex tempore (“impromptu”).
Webster’s 1913
- adjective Composed, performed, or uttered on the spur of the moment, or without previous study; unpremeditated; off-hand; extempore; extemporary; as, an extemporaneous address or production.
Etymology [See Extempore.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “extemporaneous”, CC BY-SA 4.0. Details