Neither. It's the positive degree.
busier, busiest
busier, and busiest
busier, busiest
Busy becomes busier and busiest.
They are "busier" and "busiest".
Comparative: busier Superlative: busiest
most expentsive more more more,,
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