| unplanned(adjective, free, simple, fake, natural) |
| unworldly(adjective, simple, easy, honest, slow) |
| careless(adjective, artless) |
| casual(adjective, free, simple, fake, loose) |
| extemporary(adjective, free, casual, impulsive, spontaneous) |
| spur-of-the-moment(adjective, free, spontaneous, impromptu, unrehearsed) |
| unprepared(adjective, free, casual, spontaneous, impromptu) |
| unpretentious(adjective, open, simple, reasonable, easy) |
| unschooled(adjective, simple, easy, clean, honest) |
| ad lib(expression, adjective, free, casual, unrehearsed) |
| automatic(adjective, free, simple, fake, natural) |
| easy(simple, real, genuine, unaffected, unpretentious) |
| improvised(adjective, free, simple, fake, natural) |
| plain(adjective, open, simple, reasonable, easy) |
| unconscious(adjective, simple, natural, casual, impulsive) |
| unforced(adjective, open, simple, easy, loose) |
| unrehearsed(adjective, free, casual, impulsive, spontaneous) |
| ad-lib(adjective, free, simple, fake, natural) |
| candid(adjective, easy, honest, plain, natural) |
| ignorant(adjective, open, easy, real, sincere) |