"jovial" doesn't have a comparative and superlative form. Instead, you would say "more jovial" or "most jovial."
more jovial, most jovial
The comparative and superlative would be of the word "enjoyable". They are "more enjoyable" and "most enjoyable".
comparative - merrier superlative - merriest
comparative = tenderer superlative = tenderest
jollier [comparative] jolliest [superlative]
The comparative is later, and the superlative is latest
Comparative: older Superlative: oldest
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest
what is the comparative and superlative of glad
What is the comparative and superlative of Often
The comparative and superlative would be of the word "enjoyable". They are "more enjoyable" and "most enjoyable".
comparative - merrier superlative - merriest
Comparative: shallower Superlative: shallowest
The comparative is "stricter" and the superlative is "strictest".
The comparative is greater and the superlative is greatest.
comparative = tenderer superlative = tenderest
comparative: thicker superlative: thickest
comparative - nicer superlative - nicest