wicked-more wicked, most wicked
yellow- yellower/more yellow, yellowest/most yellow
cosy- cosier, cosiest
merciful- more merciful, most merciful
bad- worse, the worst
fat- fatter, fattest
cheap- cheaper, cheapest
clumsy- climsier, clumsiest
stupid- stupider/more stupid, the stupidest/the most stupid
miserable- more miserable, most miserable