| barren(adjective, weak, poor, clean, base) |
| unproductive(adjective, weak, poor, base, inferior) |
| sanitary(adjective, clean, pure, fresh, neat) |
| infertile(adjective, clean, fruit, rich, useless) |
| unfruitful(adjective, weak, clean, dry, idle) |
| fruitless(noun, adjective, clean, product, useless) |
| vain(adjective, clean, useless, trivial, insufficient) |
| futile(adjective, poor, clean, base, inferior) |
| pure(adjective, clean, fresh, neat, wholesome) |
| unfertile(adjective, empty, young, unproductive, impotent) |
| unprofitable(adjective, poor, clean, base, inferior) |
| ineffectual(adjective, weak, poor, base, inferior) |
| childless(adjective, rich, barren, unproductive) |
| aseptic(adjective, excite, clean, pure, fresh) |
| effete(adjective, weak, clean, empty, barren) |
| impotent(adjective, weak, poor, clean, short) |
| ineffective(adjective, weak, poor, base, inferior) |
| uncontaminated(adjective, clean, pure, fresh, neat) |
| disinfected(adjective, clean, pure, fresh, wholesome) |
| profitless(adjective, poor, base, inferior, insignificant) |