| everyday(adjective, simple, plain, relaxed, straightforward) |
| extemporized(informal, spontaneous, unprepared, unplanned, unpremeditated) |
| familiar(adjective, simple, easy, plain, straightforward) |
| folksy(adjective, simple, easy, plain, modest) |
| frank(adjective, simple, plain, relaxed, straightforward) |
| free-and-easy(adjective, simple, plain, relaxed, straightforward) |
| free spirited(expression, adjective, simple, natural, casual) |
| from the hip(expression, adjective, idiom, simple, natural) |
| homey(adjective, simple, easy, plain, modest) |
| impetuous(adjective, simple, natural, casual, impulsive) |
| improv(adjective, simple, relaxed, straightforward, casual) |
| improvisational |
| improvisatory(adjective, spontaneous, unprepared, impromptu, unrehearsed) |
| improvise(create, bear, informal, find, unplanned) |
| improviso(adjective, spontaneous, unprepared, impromptu, unplanned) |
| impulsive(adjective, adverb, simple, natural, chance) |
| inconspicuous(adjective, simple, plain, relaxed, straightforward) |
| inevitable(adjective, simple, natural, casual, impulsive) |
| instinctive(adjective, simple, natural, casual, impulsive) |
| intimate(adjective, simple, easy, plain, relaxed) |