impromptu /im-prompˈtū/

1. Improvised, spontaneous, unrehearsed
2. Makeshift

1. Without preparation
2. On the spur of the moment

1. An extempore witticism or speech
2. An improvised composition
3. A musical composition with the character of an extemporization

• sonnies
• Sonnite
• sonny
• sono-
• sonobuoy
• sonobuoys
• son of a bitch
• sonofabitch
• son of a gun
• son of man
• son of the manse
• son of…
• sonogram
• sonograms
• sonograph
• sonographer
• sonographers
• sonographies
• sonographs
• sonography
• sonoluminescence
• sonorant
• sonorants
• sonorities
• sonority