[1] : The Collaborative International Dictionary of English v.0.48

joyous \joy"ous\, a. oe. joyous, joious, joios, f. joyeux.see
   joy.
   glad; gay; merry; joyful; also, affording or inspiring joy;
   with of before the word or words expressing the cause of joy.
   1913 webster

         is this your joyous city?                --is. xxiii.
                                                  7.
   1913 webster

         they all as glad as birds of joyous prime. --spenser.
   1913 webster

         and joyous of our conquest early won.    --dryden.

   syn: merry; lively; blithe; gleeful; gay; glad; mirthful;
        sportive; festive; joyful; happy; blissful; charming;
        delightful. -- joy"ously, adv. -- joy"ousness, n.
        1913 webster
see also:
joy joy"ously joy"ousness 

[2] : WordNet (r) 2.0

joyousness
     n : the emotion of great happiness syn: joy, joyfulness
         ant: sorrow
see also:
joy joyfulness sorrow 

Joyousness >> J Words
Joyousness, definition of term: Joyousness
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