| unstudied(adjective, open, simple, easy, natural) |
| candid(adjective, easy, real, genuine, unaffected) |
| artless(adjective, open, simple, easy, natural) |
| natural(adjective, open, simple, plain, casual) |
| unaffected(adjective, open, smooth, simple, easy) |
| direct(adjective, open, simple, easy, plain) |
| extemporaneous(adjective, simple, natural, casual, impulsive) |
| impromptu(adjective, simple, natural, casual, impulsive) |
| open(adjective, simple, plain, natural, genuine) |
| simple(adjective, open, easy, plain, natural) |
| sincere(adjective, open, simple, easy, plain) |
| spontaneous(adjective, simple, easy, real, impulsive) |
| unplanned(adjective, simple, natural, casual, impulsive) |
| unpremeditated |
| casual(adjective, smooth, simple, easy, natural) |
| forthright(adjective, open, simple, easy, plain) |
| frank(adjective, easy, real, genuine, unaffected) |
| honest(adjective, simple, plain, natural, ingenuous) |
| impulsive(adjective, open, simple, easy, natural) |
| ingenuous(adjective, open, simple, easy, plain) |