| precipitate(thoughtless, impetuous, unwary) |
| speak impromptu(verb, expression, improvise, extemporize) |
| speak off the cuff(verb, expression, create, invent, devise) |
| surprised(unqualified, unsuspecting, unready) |
| throw together(verb, expression, plan, create, arrange) |
| toss off(expression, free, create, fake, bear) |
| toss out(expression, free, fake, casual, impulsive) |
| unarranged(spontaneous, unprepared, unplanned, unrehearsed, unpremeditated) |
| uncontrived(adjective, simple, natural, casual, impulsive) |
| unready(unqualified, unsuspecting) |
| unscripted(fake, spontaneous, unprepared, impromptu, unplanned) |
| whip up(verb, expression, make, fix, plan) |
| without preparation(expression, adjective, adverb, manner, offhand) |
| without rehearsal(expression, adverb, manner, spontaneously, improv) |
| according to pleasure(expression, adjective, idiom, adverb, informal) |
| ad hoc(expression, adjective, free, informal, casual) |
| ad lib(expression, idiom, fake, arrange, impulsive) |
| arrange(verb, plan, create, design, prepare) |
| as one thinks best(expression, adjective, idiom, adverb, informal) |
| as one wishes(expression, adjective, idiom, adverb, informal) |