Adjectives Adjectives are words that describe nouns, such as good, big, and beautiful. Usually, adjectives are formed with the addition of a suffix—meaning sounds added after the word—such as –able, -al, -ary, -ful, -ive, -less, -y etc. For example, if you add –able to like, we get the adjective likeable. Rational, customary, thankful, active, shameless, […]