Is almost an adjective in anywhere?

No, "almost" is not an adjective in the phrase "anywhere."

Here's why:

* "Anywhere" is an adverb. It modifies the verb, indicating a place.

* "Almost" is an adverb too. It modifies the adverb "anywhere," indicating a degree or extent.

Think of it this way:

* "Almost anywhere" means "nearly in any place."

Let me know if you have any other grammar questions!