merry in WordNet English dictionary

1. quick and energetic
   "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"
   alert  brisk  lively  merry  rattling  snappy  spanking  zippy 
   
2. offering fun and gaiety
   "a festive (or festal) occasion"; "gay and exciting night life"; "a merry evening"
   gay  festal  festive  merry 
   
3. full of or showing high-spirited merriment
   "when hearts were young and gay"; "a poet could not but be gay, in such a jocund company"- Wordsworth; "the jolly crowd at the reunion"; "jolly old Saint Nick"; "a jovial old gentleman"; "have a merry Christmas"; "peals of merry laughter"; "a mirthful laugh"
   gay  jocund  jolly  jovial  merry  mirthful