A comparative adjective compares two nouns. A superlative adjective compares three or more nouns. A superlative adjective takes an -est ending.
thin – thinner – thinnest
big – bigger – biggest
long – longer – longest
tall – taller – tallest
small – smaller – smallest
My house is big.
My grandma’s house is bigger.
My neighbor has the biggest house of all.
Add -est to an adjective to make it a superlative adjective. A superlative adjective compares three or more nouns.
It’s your turn. Figure out which word in this sentence is a superlative adjective. I am taller than my brother, but my dad is the tallest of all of us. Did you figure it out? Good for you!