slower,slowest
happier,happiest
drier,driest
wetter,wettist
worse,worst
more,most
less,least
worse,worst
这个词没拼错吧,如果是thin,对应是thinner,thinnest
farther/further,farthest/furthest
earlier,earlist
more careful,most careful
more exciting,most exciting
busier,busiest