off-the-cuff
1. [ adjective ] with little or no preparation or forethought
Synonyms: impromptu extemporaneous extempore extemporary offhand offhanded unrehearsed ad-lib
Examples:

"his ad-lib comments showed poor judgment" "an extemporaneous piano recital" "an extemporary lecture" "an extempore skit" "an impromptu speech" "offhand excuses" "trying to sound offhanded and reassurin

Related terms: unprepared
2. [ adjective ] with little or no preparation or forethought
Synonyms: extemporaneous extemporary extempore offhand offhanded unrehearsed ad-lib
Examples:

"ad-lib commentst" "an extemporaneous piano recital" "an extemporary lecture" "an extempore skit" "offhand excuses" "trying to sound offhanded" "an off-the-cuff toast" "a few unrehearsed comments"

Related terms: unprepared
Similar spelling:   off_the_cuff
  off-the-shelf
  off-the-clock