The comparative form is heavier and the superlative form is heaviest.
positive - heavy (adjective or possibly adverb)
comparative - heavier (e.g. My brother is heavier than yours.)
superlative - heaviest (e.g. His brother is the heaviest player.)
The superlative form for heavy is, heaviest.
They are heavier and heaviest.
heavier
Heaviest
Heav
the heaviest
Heavier is the comparative adjective for heavy. The superlative is heaviest.
comparative - merrier superlative - merriest
comparative = tenderer superlative = tenderest
jollier [comparative] jolliest [superlative]
The comparative is later, and the superlative is latest
Comparative: heavy, heavier Superlative: heavy, heavier, heaviest
The comparative form of heavy is "heavier". The superlative form is "heaviest".
Heavier is the comparative adjective for heavy. The superlative is heaviest.
heavier, heaviest
heavier, heaviest
heavier, heaviest
heaviest, heavier
Heavier.heaviest
heavier, heaviest
heavier, heaviest
heavier, heaviest
heavier, heaviest