sturdier, sturdiest
dirtier, dirtiest
more faithful, most faithful
dirtier
No, it is not an adverb. Dirty is an adjective, where the adverb form is "dirtily."
Dirty DancingDirty HarryThe Dirty DozenDirty Mary and Crazy Larry
Dirty is an adjective.
When a German's hand is dirty he will generally wash it.
Superlative and comparative of dirty
dirtier, dirtiest
dirtier, dirtiest
dirtier, dirtiest
dirtier, dirtiest
Dirtier and dirtiest
dirtier, dirtiest
Dirtier and dirtiest.
tidier
Big Small Tiny Tall Fat Thin Smart Stupid Strong Weak Tidy Messy Dirty Clean
Dirtiest.
dirtiest.