It means someone happy or in good cheer.
"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.
Here are some sentences.He's a jovial fellow.Her jovial personality makes her lovable.
Jovial - watch - was created in 1929.
Santa Claus is a jovial old fellow. Jovial means good natured and merry. It is an adjective.
She is very nice looking. She is also very jovial .
Brice Jovial was born on 1984-01-25.
The Three Jovial Huntsmen was created in 1880.
The boy was very jovial when he received a new toy.
"The Santa Clause was especially jovial this year."