| unsophisticated(adjective, open, smooth, simple, easy) |
| unstudied(adjective, open, smooth, simple, easy) |
| unworldly(adjective, open, simple, easy, plain) |
| up front(expression, adjective, direct, straightforward, candid) |
| upfront |
| upright(adjective, open, honest, fair, proper) |
| veracious(adjective, open, honest, fair, proper) |
| wholehearted(adjective, open, honest, true, straightforward) |
| admissible(adjective, friendly, appropriate, amenable, receptive) |
| agreeable(adjective, friendly, appropriate, amenable, receptive) |
| allowable(adjective, friendly, appropriate, amenable, receptive) |
| amenable(adjective, friendly, appropriate, receptive, approachable) |
| amicable(adjective, friendly, appropriate, amenable, receptive) |
| approachable(adjective, friendly, appropriate, amenable, receptive) |
| appropriate(adjective, friendly, amenable, receptive, approachable) |
| attainable(adjective, friendly, appropriate, amenable, receptive) |
| available(adjective, friendly, appropriate, amenable, receptive) |
| barefaced(candid, frank, forthright) |
| behind |
| cashless |