La comparazione

Comparative forms are used when a person, object, or activity is compared with another. In both English and Italian you can say that X possesses a quality more than, less than, or as much as Y. The appropriate structures and forms are:

Comparativo di maggioranza (to convey majority): più...di or più...che
Tu sei più alto di me
- You are taller than me

Comparativo di minoranza (to convey minority): meno...di or meno...che
Lei è meno alta di te
- She is less tall than you

You use di when comparing two different people or things:
Alex è meno gentile di Francesco - Alex is less kind than Francesco

You use che when the comparison is between two qualities of the same thing:
La mela più verde che rossa - The apple is more green than red

Comparativo di uguaglianza (to convey equality): (così)...come or (tanto)...quanto
Il vino italiano è (così) buono come il vino francese
- Italian wine is as good as French wine
Alex è (tanto) bello quanto intelligente - Alex is as beautiful as intelligent

When used to compare nouns, (tanto)...quanto are adjectives and there is agreement:
Ho tante penne quanti libri - I have as many pens as books

Così and tanto are optional and usually avoided.

The superlative form

The relative superlative is formed by article+più/meno+adjective+di/tra/fra

La Sicilia è l’isola più bella d’Italia. Sicily is the most beautiful island in Italy.
Palomar è il meno interessante fra i romanzi di Calvino. Palomar is the less interesting among Calvino's novels.

The absolute superlative is formed by adding –issimo/a/i/e to the adjective, after removing the final letter.

Questo libro è bellissimo. This book is very nice.
Quella storia è interessantissima. This story is very interesting.

There are also other ways to form the absolute superlative:

  1. By repeating the adjective twice: Giovanna è magra magra. Giovanna is very thin.
  2. By using tutto/a/i/e: Maria è tutta contenta. Maria is so happy.
  3. By adding a prefix (arci-, iper-, stra-, super-) before the adjective: Luca è straricco! Luca is very very rich!

Irregular comparative and superlative forms

Some adjectives have both regular and irregular comparative and superlative forms. The regular forms follow the rules explained above; the irregular forms are as follows.

c1 c2
Aggettivo Comparativo Superlativo relativo Superlativo assoluto
buono migliore il migliore ottimo
cattivo peggiore il peggiore pessimo
grande maggiore il maggiore massimo
piccolo minore il minore minimo