curly
curlier
old
older
sad
sadder
good
better
big
bigger
easy
easier
far
further
fast
faster
dirty
dirtier
long
longer
stupid
more stupid
cute
cuter
weak
weaker
tall
taller
small
smaller
short
shorter
dark
darker
clever
more clever
pretty
prettier
young
younger
strong
stronger
ugly
uglier
slow
slower
quiet
quieter