difficult
more difficult
difficulter
tall
taller
tallier
thin
thinner
thiner
quiet
quieter
more quiet
sad
more sad
sadder
friendly
friendlier
more friendly
scary
scarier
more scary
big
bigger
more big
close
more close
closer
brave
more brave
braver
cute
cutier
cuter
free
freer
freeier
safe
safer
safier
hot
hottier
hotter
cool
more cool
cooler
warm
warmer
warmeir
