Unrehearsed (9)
'unrehearsed' is the definition.
(impromptu means improvised or unplanned)
This is all the clue.
(Other definitions for impromptu that I've seen before include "unrehearsed piece" , "Improvised" , "Unplanned; unrehearsed" , "Ad hoc: spontaneous-sounding musical piece mastered by Schubert" , "Ad-lib" .)
'unrehearsed' is the definition.
(I know that unrehearsed can be written as offhanded)
This is the entire clue.
(Other definitions for offhanded that I've seen before include "In casual or indifferent manner" , "Casual or curt in manual way?" .)
'unrehearsed' is the definition.
(I know that unrehearsed can be written as ad-lib)
This is all the clue.
(Other definitions for ad lib that I've seen before include "Improvise a speech" , "Off the cuff remark" , "with no forethought" , "Unscripted impromptu remark" , "Off-the-cuff remark" .)