| spontaneous(adjective, unprepared, impromptu, unplanned, unrehearsed) |
| extempore(adjective, spontaneous, unprepared, impromptu, unplanned) |
| unrehearsed(adjective, spontaneous, unprepared, impromptu, unplanned) |
| extemporaneous(adjective, fake, spontaneous, unprepared, impromptu) |
| ad lib(expression, adjective, idiom, fake, mock) |
| impromptu(adjective, adverb, mock, affected, spontaneous) |
| improvised(adjective, spontaneous, unprepared, impromptu, unplanned) |
| extemporary(adjective, spontaneous, unprepared, impromptu) |
| off the cuff(expression, adjective, unprepared, impromptu, unplanned) |
| offhand(adjective, spontaneous, unprepared, impromptu, unplanned) |
| unplanned(adjective, spontaneous, unprepared, impromptu, unrehearsed) |
| unpremeditated(adjective, spontaneous, unprepared, impromptu, unplanned) |
| unprepared(adjective, spontaneous, impromptu, unplanned, unrehearsed) |
| unstudied(adjective, spontaneous, unprepared, impromptu, unplanned) |
| ad-lib(fake, spontaneous, unprepared, impromptu, unplanned) |
| automatic(adjective, spontaneous, unprepared, impromptu) |
| casual(adjective, spontaneous, unprepared, impromptu) |
| dashed off(expression, fake, mock, affected, unprepared) |
| extemporized(adjective, fake, unprepared, unplanned, unrehearsed) |
| fake(spontaneous, unprepared, impromptu, unplanned, unrehearsed) |