Comparitive = bitterer or more commonly more bitter
Superlative= most bitter NOT bitterist
Hope that helps!
"Bit" is a noun and a verb and, as such, does not have a comparative or superlative form.
Comparative: Worse Superlative: Worst'Worse' I thinkworse, worst
sourer His drink is sourer than yours.
comparative : purer superlative : purest
The superlative is cloudiest; the comparative is cloudier.
Comparative: older Superlative: oldest
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest
What is the comparative and superlative of Often
comparative - merrier superlative - merriest
comparative = sadder superlative = saddest
Comparative: shallower Superlative: shallowest
The comparative is "stricter" and the superlative is "strictest".