What part of speech is messy?

"Messy" can be a few different parts of speech, depending on how it's used in a sentence:

* Adjective: Describing a noun, like "The room was messy."

* Noun: Referring to the state of being messy, like "The room was in a mess."

* Verb: To make something messy, like "The children messed up the kitchen."

So, to know the exact part of speech, you need to see the sentence it's used in.