The comparative degree of "up" is "higher." In English grammar, the comparative degree is used to compare two things or people. When comparing the vertical position of two objects, "higher" is the appropriate term to indicate that one object is at a greater elevation than the other.
The comparative degree is wider.
busier..
keener
lesser
Comparative = more important Superlative = most important
more full, more up
"Less" is the comparative degree of little.
The comparative degree is wider.
Teapot is a noun and, as such, does not have a comparative degree.
The comparative degree of "holy" is "holier."
Thriftier is the comparative degree of thrifty.
The comparative degree for "lush" is "lusher."
The comparative degree of "light" is "lighter."
better for its comparative and best for its superlative
"Speed" is a noun and a verb and, as such, does not have a comparative degree. The comparative of the adjective speedy is speedier.
"Less" is the comparative degree of little. The superlative degree is least.
The comparative degree of "sad" is "sadder."