1. With little or no preparation or forethought
   "an extemporary lecture"
   - ad-lib, extemporaneous, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed

See also: extemporarily, unprepared

• volume-detonation bomb
• volumed
• volumeter
• volumetric
• volumetric analysis
• volumetrical
• volumetrically
• voluminosity
• voluminous
• voluminously
• voluminousness
• Volund
• voluntarily
• voluntarism
• voluntary
• voluntary muscle
• voluntaryism
• volunteer
• Volunteer State
• voluptuary
• voluptuous
• voluptuously
• voluptuousness
• volute
• volute spring