extemporary

adj.
Spoken, done, or composed with little or no preparation or forethought. See synonyms at extemporaneous.

[From EXTEMPORE.]

extemporarily ex·tem'po·rar'i·ly (-râr'ə-lē) adv.

adjective

Spoken, performed, or composed with little or no preparation or forethought: ad-lib, extemporaneous, extempore, impromptu, improvised, offhand, snap, spur-of-the-moment, unrehearsed. Informal off-the-cuff. See prepared/unprepared.

Note: click on a word meaning below to see its connections and related words.

The adjective has one meaning:

Meaning #1: with little or no preparation or forethought
  Synonyms: ad-lib, extemporaneous, extempore, offhand, offhanded, off-the-cuff, unrehearsed

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