| susceptible(nonresistant, gullible, unsuspicious) |
| swallowing whole(expression, nonresistant, gullible, unsuspicious) |
| taken in(expression, friendly, nonresistant, gullible, unsuspicious) |
| taking the bait(expression, idiom, nonresistant, gullible, unsuspicious) |
| true blue(expression, friendly, unsuspicious, kissy-huggy) |
| tumble for(expression, nonresistant, gullible, unsuspicious) |
| tumbling for(expression, nonresistant, gullible, unsuspicious) |
| unartful(adjective, honest, plain, innocent, artless) |
| unartificial(adjective, honest, plain, innocent, artless) |
| undisguised(adjective, honest, plain, innocent, artless) |
| unreserved(adjective, honest, plain, innocent, artless) |
| unskeptical(nonresistant, gullible, unsuspicious) |
| unstudied(adjective, honest, plain, innocent, artless) |
| unwarned(friendly, unsuspicious, kissy-huggy) |
| unworldly(adjective, simple, fresh, innocent, ignorant) |
| up front(expression, adjective, honest, plain, innocent) |
| vincible(nonresistant, gullible, unsuspicious) |
| vulnerable(nonresistant, gullible, unsuspicious) |
| well-disposed(friendly, unsuspicious, kissy-huggy) |
| wide open(expression, nonresistant, gullible, unsuspicious) |