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

• low-salt diet
• low-sodium diet
• low-spirited
• low-spiritedness
• low-sudsing
• low-tech
• low-tension
• low-toned
• low-voltage
• low-warp-loom
• low-water mark
• lowan
• lowball
• lowborn
• lowboy
• lowbred
• lowbrow
• lowbrowed
• lowbush cranberry
• lowbush penstemon
• Lowell
• Lowell Jackson Thomas
• Lowell Thomas
• lower
• lower berth