| without warning(expression, adjective, violent, fast, quick) |
| abrupt(adjective, violent, fast, quick) |
| according to pleasure(expression, idiom, spontaneously, improv, extemporaneously) |
| ad-lib(adjective, adverb, offhand, impromptu, extemporaneous) |
| ad libitum(expression, spontaneously, improv, extemporaneously) |
| as one thinks best(expression, idiom, spontaneously, improv, extemporaneously) |
| as one wishes(expression, idiom, spontaneously, improv, extemporaneously) |
| at will(expression, spontaneously, improv, extemporaneously) |
| automatically(spontaneously, improv, extemporaneously) |
| breakneck(adjective, violent, fast, quick) |
| brief(adjective, violent, fast, quick) |
| extemporaneous(adjective, impromptu) |
| extemporaneously(adverb, impromptu, spontaneously, improv) |
| fast(adjective, violent, quick) |
| frantic(adjective, violent, fast, quick) |
| harum-scarum(adjective, violent, fast, quick) |
| hasty(adjective, violent, fast, quick) |
| headlong(adjective, violent, fast, quick) |
| heedless(adjective, violent, fast, quick) |
| hurried(adjective, violent, fast, quick) |