| 例句 |
unproductiveadjective producing inferior or only a small amount of vegetationcrop rotation had prevented the farmland from becoming unproductive barren, bony(also boney), dead, desolate, hardscrabble, impoverished, infertile, poor, stark, unfertile, waste bleak, inhospitable, lifelessuncultivable, untillablebankrupted, consumed, debilitated, depleted, diminished, drained, dried-up, enfeebled, exhausted, expended, lessened, reduced, spent, used uparid, desert, droughty, dry, rainless, sere(also sear), thirsty, waterlessbaked, dehydrated, parched, sunbaked fertile, fruitful, lush, luxuriant, productive, rich arable, tillablegreen, sylvan, verdant producing no resultsher attempts to write a novel have been unproductive abortive, barren, bootless, empty, fruitless, futile, ineffective, ineffectual, inefficacious, otiose, profitless, unavailing, unprofitable, unsuccessful, useless, vain hollow, idle, meaningless, pointless, valueless, worthlesshopeless, impossible, lost, no-win, unattainableinadequate, insufficient, lacking, wantingcounterproductive in vain, no dice, not worth the candle, of no avail deadly, effective, effectual, efficacious, efficient, fruitful, potent, productive, profitable, successful, virtuous meaningful, worthwhileadequate, sufficientapplicable, feasible, functional, practicable, practical, realizable, usable(also useable), workable ca. 1676 |