What is Comparative ?
Comparative is (adj) to a certain extent, when considered next to something else Judged by last year’s performance it is a comparative improvement. Synonym relative. Antonym absolute (noun) the form of an adjective or adverb showing an increase in level ‘Happier’, ‘better’ and ‘more often’ are the comparatives of ‘happy’, ‘good’ and ‘often.’ COMMENT: Comparatives are usually formed by adding the suffix -er to the adjective: ‘quicker’ from ‘quick’, for example; in the case of long adjectives, they are formed by putting ‘more’ in front of the adjective: ‘more comfortable’, ‘more expensive’, and so on.
source: Easier English, Student Dictionary Upper Intermediate Level