comparable adjective
Noun
change- An adjective that has comparative and superlative forms.
- "happy" and intelligent are comparable adjectives.
Usage
changeMost adjectives are comparable, meaning that they have a comparative form and a superlative form. For example, happy has the comparative form happier and the superlative form happiest, while intelligent has the comparative form more intelligent and the superlative form most intelligent.
In contrast, extra is a non-comparable adjective. You can say "I have an extra pen" but not "I have a more extra pen."