Superlative Adjectives

A superlative adjective is used to make a comparison among three or more units, regardless of whether they are people, places or things. To make a superlative adjective...

a) Add the suffix -est at the end of one-syllable adjectives.

b) Or add the word most before adjectives with two or more syllables.

c) Except two-syllable adjectives that end in Y. In this case, we change Y to I and add -est at the end of the adjective.

ALWAYS put the before the adjective.

For example:

a) big >> the biggest, safe >> the safest

b) mod/ern >> the most modern, dan/ger/ous >> the most dangerous

c) hap/py >> the happiest,  friend/ly >> the friendliest

Of course, there are some irregular comparative adjectives:

good >> the best, bad >> the worst, far >> the farthest

Examples:

China has the biggest population in the world.

This factory has the most modern technology.

She’s the happiest person in our family.

That was the worst film I’ve ever seen.