You could possibly choose one of these: erudite, intellectual, gifted, superior or maybe even intellectually gifted though I think erudite is possibly the best choice.
wisest
wettest is the superlative degree of wet
enough
untidier
Wiser and wisest
greedliest
wiser, wisest
the superlative degree of much is most
No, the superlative degree is "most tirelessly."
more wise and most wise
The superlative degree of stout is stoutest.
The superlative degree of "broad" is "broadest."
"Fool" is a verb and a noun and, as such, does not have a superlative degree. The superlative degree of the adjective foolish is most foolish.
"Less" is the comparative degree of little. The superlative degree is least.
Thinnest is the superlative degree of thin.
most often is the superlative degree for often
wisest
Cleanest is the superlative degree of the word clean. Cleaner is the comparative degree