| fake(adjective, create, bear, informal, discover) |
| free(adjective, simple, natural, straightforward, casual) |
| immediate(adjective, spontaneous, unprepared, impromptu, unrehearsed) |
| informal(adjective, simple, relaxed, familiar, casual) |
| unpremeditated(adjective, chance, spontaneous, unprepared, impromptu) |
| unstudied(adjective, simple, natural, casual, impulsive) |
| accidental(chance, unplanned, unpremeditated) |
| according to pleasure(expression, informal, impulsive, unplanned, extemporaneous) |
| ad libitum(expression, adjective, adverb, informal, unplanned) |
| as one thinks best(expression, informal, impulsive, unplanned, extemporaneous) |
| as one wishes(expression, informal, impulsive, unplanned, extemporaneous) |
| at will(expression, informal, impulsive, unplanned, extemporaneous) |
| autoschediastic(adjective, spontaneous, unprepared, impromptu, unplanned) |
| break loose(expression, adjective, simple, natural, casual) |
| by ear(expression, adjective, spontaneous, unprepared, impromptu) |
| colloquial(adjective, simple, plain, relaxed, straightforward) |
| congenial(adjective, simple, plain, relaxed, straightforward) |
| democratic(adjective, simple, plain, relaxed, straightforward) |
| down(adjective, simple, natural, casual, impulsive) |
| down home(expression, adjective, simple, relaxed, straightforward) |