"Dried" is the past and past participle of dry. As an adjective, the comparative and superlative forms of dry are drier and driest respectively.
The comparative and superlative degrees of clean are cleaner and cleanest.
The comparative and superlative degrees of "white" are formed in the standard way: "whiter" and "whitest" respectively.
drier and driest
looser
cleaner, cleanest
comparative : purer superlative : purest
Comparative: older Superlative: oldest
Dative; Early Comparative; Earlier Superlative; Earliest
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest
comparative - merrier superlative - merriest
comparative = sadder superlative = saddest
The comparative is "stricter" and the superlative is "strictest".
Comparative: shallower Superlative: shallowest
The comparative is greater and the superlative is greatest.
comparative straighter and the superlative the straightest
Comparative is more and superlative is most.
comparative is calmer superlative is calmest