| rash(adjective, impulsive) |
| reflexive(adjective, impulsive) |
| shot from the hip(expression, adjective, idiom, unprepared, unplanned) |
| spur of the moment(expression, adjective, free, casual, spontaneous) |
| stopgap |
| taking for ride(expression, idiom, free, informal, snap) |
| thought out loud(expression, idiom, free, informal, snap) |
| toss off(expression, free, casual, impulsive, spontaneous) |
| toss out(expression, free, casual, impulsive, spontaneous) |
| tossed off(expression, adjective, free, informal, snap) |
| tossed out(expression, free, informal, snap, improvised) |
| unexpected(unqualified, unsuspecting, unready) |
| unschooled(unqualified, inexperienced, untrained, unsuspecting, unready) |
| untrained(unqualified, inexperienced, unsuspecting, unschooled, unready) |
| unwritten |
| whipped up(expression, adjective, unprepared, unplanned) |
| winged(adjective, unqualified, unprepared, unplanned, unsuspecting) |
| winging it(expression, free, informal, casual, snap) |
| without preparation(expression, offhand, impromptu, extemporaneous) |
| without restraint(expression, adjective, adverb, informal, impulsive) |