ris·i·ble /ˈrɪzəbəl/
  (a.)能笑的,善笑的,愛笑的
  Ris·i·ble a.
  1. Having the faculty or power of laughing; disposed to laugh.
     Laughing is our busines, . . . it has been made the definition of man that he is risible.   --Dr. H. More.
  2. Exciting laughter; worthy to be laughed at; amusing. “Risible absurdities.”
     I hope you find nothing risible in my complaisance.   --Sir W. Scott.
  3. Used in, or expressing, laughter; as, risible muscles.
  Note: ☞ Risible is sometimes used as a noun, in the plural, for the feeling of amusement and for the muscles and other organs used in laughing, collectively; as, unable to control one's risibles.
  Syn: -- Ludicrous; laughable; amusing; ridiculous -- Risible, Ludicrous, Ridiculous.
  Usage: Risible differs from ludicrous as species from genus; ludicrous expressing that which is playful and sportive; risible, that which may excite laughter. Risible differs from ridiculous, as the latter implies something contemptuous, and risible does not.
  --Ris*i*ble*ness n. -- Ris*i*bly, adv.
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  risible
       adj : arousing or provoking laughter; "an amusing film with a
             steady stream of pranks and pratfalls"; "an amusing
             fellow"; "a comic hat"; "a comical look of surprise";
             "funny stories that made everybody laugh"; "a very
             funny writer"; "it would have been laughable if it
             hadn't hurt so much"; "a mirthful experience"; "risible
             courtroom antics" [syn: amusing, comic, comical,
             funny, laughable, mirthful]