| frank(adjective, honest, plain, natural, innocent) |
| raw(adjective, simple, clean, natural, straightforward) |
| sincere(adjective, honest, plain, natural, straightforward) |
| square(adjective, honest, plain, innocent, meek) |
| unadorned |
| unembellished |
| untutored(adjective, simple, pure, natural, straightforward) |
| unvarnished(adjective, direct, plain, innocent, basic) |
| wide-eyed(adjective, simple, clean, natural, straightforward) |
| authentic(adjective, simple, pure, natural, straightforward) |
| babe in woods(expression, adjective, idiom, simple, clean) |
| basic(adjective, direct, plain, innocent, meek) |
| bucolic |
| bush-league(adjective, simple, pure, natural, straightforward) |
| callow(adjective, simple, pure, natural, straightforward) |
| clean(adjective, simple, pure, natural, straightforward) |
| cornball(adjective, simple, pure, natural, straightforward) |
| credulous(adjective, kindly, ignorant, naive, unknowing) |
| folksy(adjective, simple, clean, honest, modest) |
| green(adjective, simple, clean, honest, plain) |