| vacant(adjective, use, value, silly, empty) |
| barren(adjective, poor, base, inferior, insignificant) |
| frivolous(adjective, mean, simple, slight, lower) |
| idiotic(adjective, dull, simple, slow, silly) |
| irrelevant(adjective, dull, mean, simple, slight) |
| profitless(adjective, poor, base, stupid, inferior) |
| sterile(adjective, poor, base, inferior, insignificant) |
| superficial(mean, slight, small, unimportant, trivial) |
| unproductive(adjective, poor, base, stupid, inferior) |
| vague(adjective, dull, use, value, stupid) |
| blank(adjective, use, value, empty, worthless) |
| crazy(adjective, simple, silly, foolish, stupid) |
| idle(adjective, weak, slight, stupid, trivial) |
| immaterial(adjective, mean, slight, lower, value) |
| ludicrous(adjective, dull, simple, slow, silly) |
| mindless(adjective, dull, simple, slow, silly) |
| null(adjective, slight, lower, value, inferior) |
| paltry(adjective, mean, slight, lower, poor) |
| puny(mean, slight, small, unimportant, trivial) |
| purportless(adjective, use, value, silly, stupid) |