lazy
She is the laziest girl.
fat
Piggie is the fattest cat.
good at bouncing a ball than his friends.
He is better at bouncing a ball than his friends.
the bad player
He is the worst player in the team.
pretty
A dog/a giraffe/ a mouse is the prettiest of them.
thin
A green book is thinner than a red book.
long
A snake is the longest of them.
fast
Cheetah is the fastest animals in the world.
hot
Jovi is the hottest. He is hotter than Jon and Bon.
careful
A boy with fair hair is more careful than a boy with dark hair.
sad
Matt is the saddest. Matt is sadder than Joe and John.
good player
He is the best player in the team.