useless 

  1. 形容詞
無用的, 沒有用的
無效的, 無益的
無價值的
無能的

    同義字詞
impracticable,impractical,inoperable,nonpractical,unserviceable,unusable,unworkable
abortive,barren,bootless,empty,fruitless,futile,ineffective,ineffectual,inefficacious,otiose,profitless,unavailing,unproductive,unprofitable,unsuccessful,vain

例句

  1. But it would be useless to try.
  2. I think it is practically useless .
  3. They like their men to be useless .
  4. Touch screens are just useless to me .
  5. My rifle woman , without me, is useless .