joyousness
 快樂;快活;高興
 Joy·ous a.  Glad; gay; merry; joyful; also, affording or inspiring joy; with of before the word or words expressing the cause of joy.
    Is this your joyous city?   --Is. xxiii. 7.
    They all as glad as birds of joyous prime.   --Spenser.
    And joyous of our conquest early won.   --Dryden.
 Syn: -- Merry; lively; blithe; gleeful; gay; glad; mirthful; sportive; festive; joyful; happy; blissful; charming; delightful.
 -- Joy*ous*ly, adv. -- Joy*ous*ness, n.
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 joyousness
      n : the emotion of great happiness [syn: joy, joyfulness]
          [ant: sorrow]