| 例句 |
unavailingadjective producing no resultsan unavailing effort to avert a war abortive, barren, bootless, empty, fruitless, futile, ineffective, ineffectual, inefficacious, otiose, profitless, unproductive, 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 in 1670 |