interesting
more interesting - the most interesting
good
better - the best
careful
more careful - the most careful
bad
worse - the worst
attractive
more attractive - the most attractive
beautiful
more beautiful - the most beautiful
much/many
more - the most
nice
nicer - the nicest
ugly
uglier - the ugliest
healthy
healthier - the healthiest
famous
more famous - the most famous
crowded
more crowded - the most crowded
far
farther - the farthest
few
fewer - the fewest
hot
hotter - the hottest
little
less - the least
slow
slower - the slowest
big
bigger - the biggest
clean
cleaner - the cleanest
fast
faster - the fastest
quiet
quieter - the quietest