No, "farthest" is.
Farther, farthest
far, farthest
The comparative form is farther or further. The superlative is the farthest or thefurthest.
forthest
The superlative form of genuine is more genuine.
Farther is the comparative of far, and the superlative is farthest.
No, the superlative form is "gentlest."
Comparative: uglier Superlative: ugliest
Smoothest is the superlative form of the word smooth. The comparative form is smoother.
Out can be an adjective. Its comparative and superlative forms would be more out and most out respectively.
the comparative and superlative forms of the word near are nearer(in comparative form) and nearest(in superlative form).
If splendidest was a word, it would be a superlative. The comparative form of splendid is more splendid, the superlative form is most splendid.