Oh, what a lovely question! The comparative form of "dirty" is "dirtier," and the superlative form is "dirtiest." Just like in nature, even the dirtiest of things can be transformed into something beautiful with a little love and care.
Superlative and comparative of dirty
dirtier, dirtiest
The comparative is greater and the superlative is greatest.
comparative straighter and the superlative the straightest
Comparative - better Superlative - best
Superlative and comparative of dirty
dirtier, dirtiest
dirtier, dirtiest
dirtier, dirtiest
dirtier, dirtiest
Dirtier and dirtiest
Dirtier and dirtiest.
The superlative is cloudiest; the comparative is cloudier.
comparative : purer superlative : purest
Comparative: older Superlative: oldest
What is the comparative and superlative of Often
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest