Ответ:

AdjectiveRuleComparativeSuperlative
smallone-syllable adjectives, add -er or -estsmallerthe smallest
bigdouble the last consonant and add -er or -estbiggerthe biggest
easyomit -y and add -ier or -iesteasierthe easiest
boringuse more or the mostmore boringthe most boring
goodirregular adjectivebetterthe best