| impromptu(adjective, adverb, free, ready, spontaneous) |
| extemporaneous(adjective, spontaneous, impromptu, unplanned, unrehearsed) |
| offhand(adjective, free, ready, casual, spontaneous) |
| spontaneous(adjective, free, ready, impromptu, unplanned) |
| unplanned(adjective, free, ready, casual, unqualified) |
| unready(adjective, adverb, ready, short, unqualified) |
| extempore(adjective, free, spontaneous, impromptu, unplanned) |
| unpremeditated(adjective, free, spontaneous, impromptu, unplanned) |
| improvised(adjective, free, ready, spontaneous, impromptu) |
| untrained(adjective, simple, poor, ready, coarse) |
| raw(adjective, simple, poor, thin, coarse) |
| unrehearsed(adjective, free, ready, spontaneous, impromptu) |
| crude(adjective, simple, rough, coarse, natural) |
| off the cuff(expression, adjective, idiom, free, ready) |
| ad-lib(adjective, free, ready, spontaneous, impromptu) |
| coarse(adjective, simple, rough, natural, fresh) |
| incomplete(adjective, rough, poor, thin, small) |
| makeshift(adjective, free, simple, natural, unrefined) |
| surprised(adjective, ready, unqualified, unsuspecting, unready) |
| unfinished(unrefined, incompleteness) |