Any and whatever (qualsiasi, qualunque)

Qualsiasi and Qualunque

When you want to say "any" or "whatever" (meaning "it doesn't matter which one"), use the indefinite adjectives qualsiasi or qualunque.

Both words are invariable—they never change to match the noun—and are used with singular nouns.

I will buy any dress.
Comprerò qualsiasi abito.
Any size is fine.
Qualunque taglia va bene.

Which one to use?

Qualsiasi and qualunque are entirely interchangeable. Whether the noun is masculine or feminine, the adjective remains exactly the same.

Any fabric is excellent.
Qualsiasi tessuto è ottimo.
The dry cleaner will wash any fabric.
La lavanderia laverà qualunque tessuto.

With Other Adjectives

If you describe the noun further with a standard adjective, qualsiasi or qualunque goes directly before the noun, while the descriptive adjective follows it.

Any free fitting room is fine.
Qualunque camerino libero va bene.
I will change any broken button.
Cambierò qualunque bottone rotto.