| simplehearted(adjective, open, simple, easy, real) |
| single-hearted |
| spare(adjective, simple) |
| square(adjective, open, simple, honest, plain) |
| straight-out(adjective, frank) |
| trustworthy(open, honest, true, straightforward, straight) |
| unadorned(adjective, simple, plain) |
| unapt(incompetent, clumsy, inexpert) |
| unartful(adjective, honest, plain, innocent, impulsive) |
| unbiased(adjective, free, friendly, appropriate, honest) |
| uncalculating |
| unconcealed(adjective, open, direct, free, easy) |
| undexterous(incompetent, clumsy, inexpert) |
| unfacile(incompetent, clumsy, inexpert) |
| unforced(adjective, open, simple, easy, natural) |
| unguarded(adjective, thoughtless, unwary) |
| uninhibited(adjective, open, direct, free, easy) |
| unobjectionable(adjective, kindly, ignorant, naive, unknowing) |
| unprompted(natural, impulsive, spontaneous, voluntary, spur-of-the-moment) |
| unrefined(adjective, simple, rude, coarse, natural) |