1. adjective /kəmˈpæɹ.ə.tɪf/
a) Of or related to comparison.
And need he had of slumber yet, for none / Had suffered more—his hardships were comparative / To those related in my grand-dads Narrative.
b) Using comparison as a method of study, or founded on something using it.
2. noun /kəmˈpæɹ.ə.tɪf/
a) A construction showing a relative quality, in English usually formed by adding more or appending -er. For example, the comparative of green is greener; of evil, more evil.
b) A word in the comparative form.
Wikipedia foundation.