comparative, comparative degree -- (the comparative form of an adjective or adverb; "`faster' is the comparative of the adjective `fast'"; "`less famous' is the comparative degree of the adjective `famous'"; "`more surely' is the comparative of the adverb `surely'")
Overview of adj comparative
The adj comparative has 2 senses
comparative -- (relating to or based on or involving comparison; "comparative linguistics")
relative, comparative -- (estimated by comparison; not absolute or complete; "a relative stranger")