| frivolous(adjective, slight, detail, small, silly) |
| ineffective(adjective, poor, base, inferior, insignificant) |
| ineffectual(adjective, poor, base, inferior, insignificant) |
| jejune(adjective, ineffective, immature, fruitless) |
| waste(verb, adjective, drop, give, reduce) |
| abandoned(adjective, clear, free, poor, base) |
| desert(adjective, clear, bare, bleak, barren) |
| unfilled(adjective, clear, free, keen, eager) |
| deplete(verb, drop, give, remove, reject) |
| devoid(adjective, clear, free, full, short) |
| emptied(adjective, clear, free, property, flattened) |
| insincere(adjective, worthless, ineffective, throwaway, fruitless) |
| lonely(adjective, single, solitary, alone, lone) |
| shallow(adjective, slight, detail, small, deep) |
| sterile(adjective, poor, clean, base, inferior) |
| stupid(adjective, dull, simple, silly, dead) |
| trifling(adjective, slight, flat, poor, base) |
| unavailing(adjective, poor, base, inferior, insignificant) |
| depleted(adjective, flat, poor, dry, bare) |
| destitute(adjective, clear, free, poor, full) |