smoother is comparative of word smooth.
Smoothest is the superlative form of the word smooth. The comparative form is smoother.
The comparative of plain is 'plainer' and the superlative is 'plainest'.
The comparative form of smooth is smoother, not more smooth.
smoother
smoother, smoothest
Sharper is the comparative form of the word sharp.
The comparative form of the word 'fast' is 'faster'.
The comparative form of longest is longer.
smoother,smoothest.
Fool is a noun and a verb and, as such, does not have a comparative form.
What is the comparative form of word naughty ?
"Windier" is the comparative form of windy. "Windiest" is the superlative form.