| believing(adjective, foolish, innocent, susceptible, naive) |
| biting(adjective, foolish, innocent, susceptible, naive) |
| easily taken in(expression, adjective, idiom, foolish, innocent) |
| easy mark(expression, adjective, foolish, innocent, susceptible) |
| falling hook line and sinker(expression, adjective, idiom, foolish, innocent) |
| foolish(adjective, innocent, susceptible, naive, trusting) |
| green(adjective, foolish, innocent, susceptible, naive) |
| gullible(adjective, innocent, susceptible, naive, nonresistant) |
| innocent(adjective, foolish, susceptible, naive, trusting) |
| kidding oneself(expression, adjective, foolish, innocent, susceptible) |
| mark(adjective, foolish, innocent, susceptible, naive) |
| naive(adjective, foolish, innocent, susceptible, gullible) |
| silly(adjective, foolish, innocent, susceptible, naive) |
| simple(adjective, foolish, innocent, susceptible, naive) |
| sucker(adjective, foolish, innocent, susceptible, naive) |
| susceptible(adjective, foolish, innocent, naive, unsophisticated) |
| swallowing whole(expression, adjective, foolish, innocent, susceptible) |
| taken in(expression, adjective, foolish, innocent, susceptible) |
| taking the bait(expression, adjective, idiom, foolish, innocent) |
| trustful(adjective, foolish, innocent, susceptible, naive) |