jolly, happy, pleasant, hilarious, enjoyable, delightful
Jocularity, Jocular, Jollityor Jovial might do ...
It can be. "Cheerful" is a synonym of happy, jolly, merry, bright, glad, sunny, joyful, jovial, genial, elated, gleeful and others.
"jovial" doesn't have a comparative and superlative form. Instead, you would say "more jovial" or "most jovial."
He is so Jovial! Always be jovial in life.
Jovial
A jovial expression is one of cheerfulness.
Downcast means feeling despondent. Disheartened is a synonym. Blithe is similar; it means showing a casual and cheerful indifference considered to be callous or improper." The rest of the words would be antonyms.
Here are some sentences.He's a jovial fellow.Her jovial personality makes her lovable.
Jovial - watch - was created in 1929.
Despite the rainy weather, the family remained jovial and enjoyed their picnic in the park.
She is very nice looking. She is also very jovial .