Small smaller the smallest
Tall taller the tallest
Old-fashioned more old - fashioned the most old-fashioned
Messy messier the messiest
Light lighter the lightest
Clean cleaner the cleanest
Colourful more colourful the most colourful
Comfortable more comfortable the most comfortable
Large larger the largest
Modern more modern the most modern
Bad worse the worst
Thin thinner the thinnest
Fat fatter the fattest
Good better the best