Which of these adjectives are comparative

old

whiter

brilliant

tasty

colder

most beautiful

worse

comfortable

wider

young

dirtier

great

more intelligent

best

loudest

light

hotter

quiter

cheap

difficult

cosiest

tinier

frozen

ugly

most

snowest

sly

higher

storm

shorter

far

more

different

more expensive

brave

longer

big

attractive

rainiest

further

modern

larger

angriest

less

wooden

shier

kind

round

more valuable

selfish

smarter

clear

narrower

cleanest

good

cloudy

more polite

most jealous

more colorful

wonderful