Какой

what, which, what a, such a

k ɐ k o j → какой
как what, which + ой Masculine singular adjective ending
determiner · singular masculine, nominative / singular feminine, genitive / singular feminine, dative / singular masculine, accusative / singular feminine, instrumental / singular feminine, locative Rare #54,142
what, which Used to ask about the identity, type, or characteristic of a noun; it agrees with the noun in gender, number, and case.
RU: Какой фильм ты хочешь посмотреть?
EN: What movie do you want to watch?
what a, such a Can express surprise or strong emotion in exclamations.
RU: Какой красивый день!
EN: What a beautiful day!
Forms of какой

"Какой же это рай."

What a paradise this is.

— Цветы войны (2011)

"Какой-то Пикассо".

Some Picasso.

— Титаник (1997)

"Какой ты дурачок, лысый".

You silly bald fool.

— Хористы (2004)

Sounds similar to