0
more repulsive, most repulsive
Serving, or able, to repulse; repellent; as, a repulsive force., Cold; forbidding; offensive; as, repulsive manners.
"To them these creatures look rather slimy and repulsive."
The predicate adjectives are 'slimy' and 'repulsive', renaming the antecedent 'creatures'.
Some people find spiders and snakes to be repulsive.
The word "repulsive" is an adjective, as it describes something that causes a strong feeling of disgust or aversion.