fu·tile /ˈfjutḷ, ˈfjuˌtaɪl/
  (a.)無用的,瑣細的,無效果的
  Fu·tile a.
  1. Talkative; loquacious; tattling. [Obs.]
     Talkers and futile persons.   --Bacon.
  2. Of no importance; having no useful purpose; useless; vain; worthless; pointless. “Futile theories.”
     His reasoning . . . was singularly futile.   --Macaulay.
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  futile
       adj 1: producing no result or effect; "a futile effort"; "the
              therapy was ineffectual"; "an otiose undertaking"; "an
              unavailing attempt" [syn: ineffectual, otiose, unavailing]
       2: unproductive of success; "a fruitless search"; "futile years
          after her artistic peak"; "a sleeveless errand"; "a vain
          attempt" [syn: bootless, fruitless, sleeveless, vain]