Learn English – Looking for a word – prince’s clothes

There's quite a lot of regional variation on this one, but here's the overall picture

I won't bother adding more charts, but if you follow the link above, and toggle between US/UK corpuses, you'll see that Brits still favour crumpled, but Americans have moved decisively in favour of wrinkled over recent decades. By weight of numbers wrinkled is definitely the one with the most promising future.

In the context of clothes, wrinkled, crumpled, creased, rumpled, etc. all mean exactly the same thing. But note that trousers, for example, may occasionally be approvingly referred to as nicely creased when they've been ironed/pressed to make a sharp fold line exactly where it's wanted.

The meaning of "dress" is context-sensitive.

In "Nice dress, man!", the "nice" modifier makes it sound like you are referring to a specific item of clothing that you like. Therefore, I would assume that you are referring to a skirt-like garment. The same goes for "a dress", "the dress", "this dress", "your dress", or any modifier that makes it sound specific.

There are, however, situations where "dress" has a more generic meaning:

• "Dress" used as an adjective is likely to be generic:

  This company has a strict dress code: suits and ties for men, pantsuits for women.

• "Dress" used as a verb is likely to be generic:

  This party will be an opportunity to dress up.

  It's taking you forever to get dressed!

• "Dress" used as a noun requires thought:

  The wedding invitation says formal dress requested, so I'll have to get my old suit altered.