slow
The turtle is the slowest animal.
tall
The giraffe is the tallest animal.
young
The baby is the youngest.
heavy
The hammer is the heaviest object.
happy
The cat is the happiest.
big
The cactus is the biggest plant.
small
The ant is the smallest insect.
short
Sophie is the shortest in the family.
sweet
Cotton candy is the sweetest.
sad
The boy is the saddest.