The comparative form of comfortable is more comfortable.
more commodious, most commodious
more commodious, most commodious
The comparative form of the adjective "wise" is "wiser."
The comparative form of the adjective "long" is "longer."
No, the comparative form of red is "more red." "Redder" is the comparative form of the adjective "red."
No, sideways is not a comparative form of an adjective.
"Pride" is a noun and a verb and as such does not have a comparative form. The adjective "prideful" has the comparative "more prideful", while the adjective "proud" has the comparative "prouder."
No, it is a comparative adjective. (comparative form of the adjective large)A "proper adjective" is a capitalized form derived from a proper noun (e.g. French).
Perhaps you mean the comparative form: the comparative form of the adjective pretty is prettier. (The superlative form is prettiest, but comparative sounds more like cumulative.)
Missing is an absolute adjective and doesn't have a comparative form.
The comparative form of "long" is "longer".