| inartificial(adjective, open, smooth, simple, easy) |
| just(honest, fair, proper, straightforward, blunt) |
| naif |
| on the level(expression, adjective, idiom, good, open) |
| open-hearted(adjective, artlessness) |
| openhearted(adjective, free, friendly, appropriate, honest) |
| plainspoken(adjective, clear, show, open, honest) |
| pure(adjective, simple, honest, plain, natural) |
| simpleminded |
| straight-out(adjective, clear, show, frank) |
| trustful(adjective, pure, innocent, naive, artless) |
| trustworthy(open, honest, fair, proper, straight) |
| uncomplicated(adjective, simple, pure, natural, straightforward) |
| unfeigned(adjective, good, open, simple, easy) |
| uninhibited(adjective, open, direct, free, easy) |
| unschooled(adjective, simple, clean, honest, natural) |
| untutored(adjective, simple, natural, straightforward, naive) |
| upfront(adjective, open, direct, fair, proper) |
| veracious(adjective, open, honest, fair, proper) |
| accurate(adjective, open, honest, straight, veracious) |