Merry
Part of speech: adjective
Definition: Jolly and full of high-spirits Festive and full of fun and laughter Brisk happy or showing enjoyment
Example sentence: Love is a perky elf dancing a merry little jig and then suddenly he turns on you with a miniature machine gun.
Jovial
Part of speech: adjective
Definition: Pertaining to Jove or Zeus; Jovian.Pertaining to the planet Jupiter.Under the influence of the planet Jupiter (considered a source of happiness).Merry; cheerful and good-humored.