Merriest

adjective

1. Jolly and full of high spirits.

   "We had a very merry Christmas."

2. Festive and full of fun and laughter.

   "Everyone was merry at the party."

3. Brisk

   "The play moved along at a merry pace."

4. Causing laughter, mirth, gladness, or delight.

   "a merry jest"

5. Drunk; tipsy

   "Some of us got a little merry at the office Christmas party."