What a mess! How messy!

[zaffy]

Entering a messy room, we normally say 'What a mess!'. Now, is it possible/natural to say 'How messy!'

 

[RedwoodGrove]

It wouldn't sound natural or idiomatic in many situations in AE. Can you provide a context?

 

[ewie]

It wouldn't sound natural or idiomatic in many situations in AE.

Nor in BrE.

 

[zaffy]

thanks, I get it.