There is no superlative for sweater because it is a noun. An adjective has a superlative form, by adding an 'est' to the end of the word.
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
The superlative for willing would be "most willing." There is no one-word superlative.
"Studying" is not a superlative, as it is not an adjective. "Most studious" is a superlative of "studious."
"Bib" is a noun and, as such, does not have a superlative form.
most superlative is the superlative form of superlative
Tallest is the superlative.
superlative of quiet
bigger is the comparativebiggest is the superlative
smallest is the superlative. (est is the standard superlative ending._
A Bill Cosby sweater is another term for a Cosby sweater, an oversized sweater featuring a loud, kitschy pattern.
there isn't a prefix for sweater
The sweater was made of wool. They attempted to make a sweater from the bags.